Bottom Garment

ABSTRACT

Provided is a bottom garment that does not inhibit ease of movement during action, and has a large pivot effect with respect to the knee. A bottom garment according to the present invention includes elastic yarn and is configured of a body fabric and an inner fabric, wherein the inner fabric is superposed on the inside of the body fabric, the bottom garment having a double structure in which at least a portion of the inner fabric is not joined to the body fabric. The bottom garment is characterized in that 0.1≤A/B&lt;1.0 is satisfied, where A is the stress upon 80% elongation in the vertical direction of a product of the inner fabric, and B is the stress upon 80% elongation in the horizontal direction of the product of the inner fabric.

FIELD

The present invention relates to a bottom garment.

BACKGROUND

Conventionally, various types of girdles, briefs, shorts, tights, spats,etc., have been investigated for the purpose of improving the supportand shape retention of the buttocks. For example, there has beenproposed a girdle in which a member having a stronger tightening forcethan a main body is partially arranged on the main body of the girdle toenhance the muscle support effect (refer to Patent Literature 1 below).Likewise, many sports tights and compression garments have beenproposed.

Furthermore, in individuals having an improper ordinary gait, such asbow-legged individuals or individuals having knock-knees, there isexcessive strain on the knee joints, leading to muscle weakness and kneepain.

Significant investigation has been made regarding clothing aimed atcorrecting such bow-leggedness or knock-knees. For example, a garmentwhich can correct bow-leggedness or knock-knees to reduce knee pain bythe provision of a garment body and band-shaped lateral knee supportmember and construction of the lateral knee support member with alow-stretch material having a lower elongation rate in the heightdirection than the elastic material constituting the garment body hasbeen proposed (refer to Patent Literature 2 below).

However, a bottom garment which does not inhibit ease of movement duringaction and has a large rotation effect with respect to the knee has notbeen investigated.

CITATION LIST Patent Literature

[PTL 1] Japanese Unexamined Patent Publication (Kokai) No. 2004-300619[PTL 2] Japanese Unexamined Patent Publication (Kokai) No. 2019-081986

SUMMARY Technical Problem

In light of the prior art described above, an object of the presentinvention is to provide a bottom garment which does not inhibit ease ofmovement during action, and has a large rotation effect with respect tothe knee.

Solution to Problem

As a result of rigorous investigation and repeated experimentation inorder to achieve the object described above, the present inventors havecompleted the first present invention.

Specifically, the first present invention is as described below.

[1]

A bottom garment, which comprises an elastic yarn, which is composed ofa body fabric and an inner fabric, and in which there is present adouble structure in which the inner fabric overlaps the inside of thebody fabric and at least a part of the inner fabric is not joined to thebody fabric, wherein when a stress upon 80% elongation in a verticaldirection of a product of the inner fabric is defined as A and a stressupon 80% elongation in a horizontal direction of a product of the innerfabric is defined as B, 0.1≤A/B<1.0.

[2]

The bottom garment according to [1], wherein 0.1≤A/B<0.5.

[3]

The bottom garment according to [1] or [2], wherein when a stress upon50% elongation in a horizontal direction of a product of the body fabricis defined as C and a stress upon 50% elongation in a horizontaldirection of the inner fabric is defined as D, 1.6<D/C≤10.

[4]

The bottom garment according to [3], wherein 1.6<D/C≤6.0.

[5]

The bottom garment according to [4], wherein 1.6<D/C≤4.0.

[6]

The bottom garment according to any one of [1] to [5], which is a sportgarment.

Furthermore, as a result of rigorous investigation and repeatedexperimentation in order to achieve the object described above, thepresent inventors have completed the second present invention.

Specifically, the second present invention is as described below.

<1>

A bottom garment, which comprises an elastic yarn, which is composed ofa body fabric and an inner fabric, and in which there is present adouble structure in which the inner fabric overlaps the inside of thebody fabric and at least a part of the inner fabric is not joined to thebody fabric, wherein a vertical direction center line of the innerfabric is located below a part corresponding to the greater trochanterin the vertical direction in a side part of the bottom garment.

<2>

The bottom garment according to <1>, wherein an upper end part of theinner fabric is located below the part corresponding to the greatertrochanter in the vertical direction in the side part of the bottomgarment.

<3>

The bottom garment according to <1>or <2>, wherein a shortest distancebetween an upper end of the inner fabric and the part corresponding tothe greater trochanter in the side part of the bottom garment is 0 cm to10 cm.

<4>

The bottom garment according to any one of <1>to <3>, wherein 80% ormore of a side end part of the inner fabric in a bottom rear surface isjoined with the body fabric at a thigh part.

<5>

The bottom garment according to any one of <1>to <4>, wherein when avertical direction highest point of a side end part of the inner fabricin a front surface of the bottom garment is defined as A, a verticaldirection highest point of the inner fabric in a bottom garment sidepart is defined as B, and a vertical direction highest point of the sideend part of the inner fabric in a rear surface of the bottom garment isdefined as C, a vertical direction height satisfies A>B>C.

<6>

The bottom garment according to <5>, wherein the inner fabric is joinedto the body fabric on the front surface of the bottom garment above, inthe vertical direction, a plane perpendicular to the bottom garmentvertical direction including a crotch part.

<7>

The bottom garment according to any one of <1>to <4>, wherein when avertical direction highest point of a side end part of the inner fabricin a front surface of the bottom garment is defined as A, a verticaldirection highest point of the inner fabric in a bottom garment sidepart is defined as B, and a vertical direction highest point of the sideend part of the inner fabric in a rear surface of the bottom garment isdefined as C, a vertical direction height satisfies B>A and B>C.

<8>

The bottom garment according to <7>, wherein 80% or more of a side endpart of the inner fabric in a bottom front surface is joined with thebody fabric at a thigh part.

Advantageous Effects of Invention

The bottom garment of the present invention does not inhibit ease ofmovement during action, and has an excellent rotation effect withrespect to the knee.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a view showing an example of the structure of the bottomgarment according to the present embodiment. In FIG. 1, the thick solidline indicates the area joined by sewing (the same applies to FIG. 2below).

FIG. 2 is a view showing an example of the structure of the bottomgarment according to the present invention.

FIG. 3 is a view showing an example of the structure of the bottomgarment according to the present invention. In FIG. 3, the thick solidline indicates the area joined by sewing, and the thick dotted lineindicates the area joined by bonding (the same applies to FIGS. 4 to 11below).

FIG. 4 is a view showing an example of the structure of the bottomgarment according to the present invention.

FIG. 5 is a view showing an example of the structure of the bottomgarment according to the present invention.

FIG. 6 is a view showing an example of the structure of the bottomgarment according to the present invention.

FIG. 7 is a view showing an example of the structure of the bottomgarment according to the present invention.

FIG. 8 is a view showing an example of the structure of the bottomgarment according to the present invention.

FIG. 9 is a view showing an example of the structure of the bottomgarment according to the present invention.

FIG. 10 is a view showing an example of the structure of the bottomgarment according to the present invention.

FIG. 11 is a view showing an example of the structure of the bottomgarment according to the present invention.

FIG. 12 is a view showing measurement points when evaluation of theeffects of the bottom garment of the present embodiment are performed.

DESCRIPTION OF EMBODIMENTS Embodiment of First Invention

The embodiment of the first present invention will be described indetail below.

The bottom garment of the first present invention comprises an elasticyarn, which is composed of a body fabric and an inner fabric, and inwhich there is present a double structure in which the inner fabricoverlaps the inside of the body fabric and at least a part of the innerfabric is not joined to the body fabric, wherein when a stress upon 80%elongation in a vertical direction of a product of the inner fabric isdefined as A and a stress upon 80% elongation in a horizontal directionof a product of the inner fabric is defined as B, 0.1≤A/B<1.0.

In the bottom garment of the first present invention, by overlapping theinner fabric on the inside of the body fabric and setting the ratio(A/B) of the vertical direction and horizontal direction stresses upon80% elongation of the product of the inner fabric to within apredetermined range, since the inner fabric follows the elongation ofthe skin during action and does not inhibit the action, movement isfacilitated, and an external rotation force or internal rotation forcecan be efficiently applied to the body, whereby the rotation effect withrespect to the knee is large. Thus, a corrective effect onbow-leggedness and knock-knees can be expected, and an excellent walkingassist effect can be achieved by wearing the bottom garment of thepresent invention.

Thus, the bottom garment of the present invention can be suitablyapplied to sports shorts, sports tights, undergarments for middle-agedand elderly people, etc.

In particular, the bottom garment of the present invention is preferablya sport garment, i.e., a bottom for sports. The above-mentioned effectscan be better realized thereby.

The body fabric primarily constituting the bottom garment of the presentembodiment may comprise an inelastic yarn. The inelastic yarn used forthe body fabric primarily constituting the bottom garment of the presentembodiment is not particularly limited, and for example, syntheticfibers such as polyamide fibers, polyester fibers, acrylic fibers,polypropylene fibers, vinyl chloride fibers, etc., can be used. Thefineness of the synthetic fiber is preferably 20 dtex to 200 dtex.

Furthermore, the inelastic yarn may be either a filament yarn or a spunyarn.

The form of the filament yarn may be any of a raw yarn (unprocessedyarn), a false twisted yarn, a dyed yarn, etc., or a composite yarnthereof. The composite yarn is not particularly limited and may be anair-blended yarn, combined twist, covered yarn, false-twist mixed fiber,etc. The cross-sectional shape of the filament yarn is not particularlylimited, and may be a circular, triangular, cross-shaped, W-shaped,M-shaped, C-shaped, I-shaped, dog-bone-shaped, or hollow fiber.

The form of the spun yarn may be either single or blended. The blendedspinning method is not particularly limited, but a spun yarn obtained bythe MVS method, in which pilling is less likely to occur, is preferable.

In the inelastic yarn, bright yarn, semi-dull yarn, fully-dull yarn,etc., can be arbitrarily selected.

Cellulose fibers may be used as a part of the inelastic yarn. Thecellulose fibers are also not particularly limited, and for example,cupra, rayon, bamboo fibers, cotton, modal, and lyocell can be used.

The cellulose fibers may be any of a raw yarn (unprocessed yarn), afalse twisted yarn, a dyed yarn, etc., in the form of a filament yarn,and may be a composite yarn thereof. Furthermore, the cellulose fibersmay be in the form of a spun yarn, either alone or in a blended manner.

The cellulose fibers are preferably cupra fibers. The fineness of thecellulose fibers used, in the case of a filament yarn, is preferably 30dtex to 200 dtex, more preferably 30 dtex to 170 dtex, and furtherpreferably 30 dtex to 120 dtex. Furthermore, in the case of a spun yarn,No. 60 to No. 30 spun yarns are preferable, and No. 50 to No. 40 spunyarns are more preferable. By blending cellulose fibers, it is possibleto obtain a bottom garment having excellent wearing feeling, excellentantistatic properties, and excellent bending softness due to thehygroscopicity thereof

In the bottom garment of the present embodiment, an elastic yarn is atleast partially arranged in the body fabric constituting the bottomgarment.

The elastic yarn partially arranged in the body fabric of the bottomgarment of the present embodiment refers to fibers having a breakingelongation of 100% or more. The polymer of the elastic yarn and thespinning method are not particularly limited, and examples thereofinclude polyurethane elastic yarns (also referred to as spandex orspandex fibers), polyether ester elastic yarns, polyamide elastic yarns,polyolefin elastic yarns, etc., and for example, as a polyurethaneelastic yarn, dry spinning or melt spinning can be used. Furthermore,these elastic yarns may be coated with an inelastic yarn so as toachieve a covered state. Furthermore, so-called rubber yarns, which arein the form of yarns composed of natural rubber, synthetic rubber, orsemi-synthetic rubber, can be used, but polyurethane elastic yarn, whichhas excellent elasticity and is conventionally widely used, ispreferable. Thereamong, the diol component constituting the polyurethanepolymer preferably has a side chain, more preferably the side chain is amethyl group, and further preferably has two methyl groups on the samecarbon.

The breaking elongation of the elastic yarn is preferably 400% to 1000%from the viewpoint of imparting the fabric with suitable elasticity. Thebreaking elongation is a value measured by the method described in JISL1013 “8.5.1 Tensile Strength and Elongation.”

It is preferable that the elasticity of the elastic yarn not be impairedat approximately 180° C., which is the normal processing temperature inthe presetting process during the dyeing process. Furthermore, elasticyarn having functionality such as high settability, deodorant property,antibacterial property, hygroscopic property, and water absorptionproperty to which a special polymer or powder is added can also be used.Regarding the fineness of elastic yarn, fibers having a fineness ofapproximately 10 dtex to 700 dtex (decitex, the same symbol is usedbelow) can be used, when looping with the elastic yarn, it is preferableto use elastic yarn having a fineness of approximately 12 dtex to 250dtex, and when performing insertion knitting of the elastic yarn using aRaschel knitting machine, it is preferable to use elastic yarn having afineness of 70 dtex to 700 dtex.

As the body fabric primarily constituting the bottom garment of thepresent embodiment, a woven fabric or a knitted fabric is used, which isappropriately selected in accordance with the item. A knitted fabric ispreferable from the viewpoint of elasticity.

In the case of warp knitting, a structure in which the elastic yarn isinserted or looped by a Raschel knitting machine or a tricot knittingmachine is preferably used. In the Raschel structure, a structure inwhich thick spandex fibers such as 6-course satin, 4-course satin,6-course tulle, and triconette are inserted is preferably used. A fabricin which two spandex fibers are inserted and the fabric is stretched inthe vertical and horizontal is particularly preferable from theviewpoint of wearing comfort. Among tricots, half tricots, doublestitches, atlas structures, etc., are preferable because they have goodelasticity.

In the case of a circular knitting, it is preferable that the elasticyarn be looped.

As the body fabric, a woven fabric woven with elastic fibers is alsopreferably used.

As the basis weight of the body fabric, a fabric having a basis weightof 50 to 400 g/m² is preferably used.

In the body fabric of the present embodiment as a product for generalconsumers, the stress upon 50% elongation in a horizontal direction ispreferably 0.3 N to 3 N, more preferably 0.3 N to 2.5 N, and furtherpreferably 0.5 N to 1.5 N. The elongation stress is measured using aTensilon tensile tester to stretch a 2.5 cm wide sample gripped at agrip interval of 10 cm at a tension rate of 300 mm/min to obtain astress at an elongation ratio of 50%. When the stress upon 50%elongation in a horizontal direction of the body fabric is 3 N or less,there is no excessive tightening at the time of wearing, achievingcomfort. Conversely, when the stress upon 50% elongation in a horizontaldirection of the body fabric is 0.3 N or more, the wearing feeling isenhanced and it becomes easy to suppress shaking of the body duringaction. Furthermore, as a product for athletes with a large amount ofmuscle, it is preferable that the stress upon 50% elongation in ahorizontal direction of the body fabric be 0.3 N to 5 N, more preferably0.3 N to 4.5 N, and further preferably 0.5 N to 4.0 N.

Furthermore, the stress upon 50% elongation in a vertical direction ofthe body fabric is preferably 0.3 N to 4 N. When the stress upon 50%elongation in a vertical direction is 4 N or less, the ability to followaction during actions such as sitting and crouching is enhanced.Conversely, when it is 0.3 N or more, the wearing feeling is enhancedand it becomes easy to suppress shaking of the body during action or thelike. As used herein, the “horizontal direction” refers to theperipheral direction of the bottom product (the direction around thehuman body when worn), and the “vertical direction” refers to thevertical direction of the bottom product (the direction in which thebottom garment is put on the human body).

When used for inners such as girdles and shorts, it is preferable thatthe hem on the leg side have a hem structure formed by pulling outthreads and a free-cut structure that can be used without fraying orcurling of threads on the cut surface. By using these, since it is notnecessary to sew the end portions, it is possible to prevent the endportions from becoming thick and to prevent the end portions fromcontacting the skin and leaving marks on the skin. Furthermore, linesare not visible on the outside, which is excellent in aesthetics. As thefree-cut material, for example, a blended material of polyurethane andan inelastic fiber, which is easily heat-sealed, is preferably used, andnylon or polyester is preferably used as the inelastic yarn.

The bottom garment of the present embodiment is characterized by havinga double structure in which the inner fabric overlaps the inside (thehuman body side when worn) of the body fabric.

As the inner fabric, a woven fabric or knitted fabric is used, which isappropriately selected depending on the product, but a knitted fabric ispreferable from the viewpoint of elasticity. In the case of warpknitting, a structure in which the elastic yarn is inserted or looped bya Raschel knitting machine or a tricot knitting machine is preferablyused. In the Raschel structure, a structure in which thick spandexfibers such as 6-course satin, 4-course satin, 6-course tulle, andtriconette are inserted is preferably used. A fabric in which twospandex fibers are inserted and the fabric is stretched in the warp andweft is particularly preferable from the viewpoint of wearing comfort.In Jacquard Raschel, there may be a difference in fabric stretch stresswithin the inner fabric panel. Among tricots, half tricots, doublestitches, atlas structures, etc., are preferable because they have goodelasticity. In the case of a circular knitting, it is preferable thatthe elastic yarn be looped. As the woven fabric, a woven fabric wovenwith elastic fibers is preferably used. As the basis weight of the innerfabric, a fabric having a basis weight of 50 to 400 g/m² is preferablyused.

In the inner fabric of the present embodiment, the area covered by theinner fabric is preferably 60% or less of the area of the buttocks fromthe viewpoint of efficiently exerting the external rotation force or theinternal rotation force. As used herein, the term “buttocks” refers tothe region from the left and right sides of the human body and thesupracristal plane (waist) to the gluteal sulcus. If the inner fabriccovers 60% or less of the area of the buttocks, the stretch balance ofthe inner fabric is likely to change when worn, and the force forpulling the thighs outward or inward becomes strong and effective, andthus, the area covered is more preferably 50% or less. Furthermore, ifthe area covering the buttocks is more than a predetermined area, theinner fabric does not bite into the body when stretched, and thepressure applied during stretching is low, whereby wearing comfort isachieved. Thus, the inner fabric preferably covers at least 10% or moreof the buttocks. When covering the upper part of the thighs, it ispreferable to cover a portion within 10 cm from the gluteal sulcustoward the lower leg.

The vertical direction width of the product of the inner fabric ispreferably 5 cm to 20 cm, and more preferably 5 cm to 18 cm. When thevertical direction width of the inner fabric is 5 cm or more, there is asufficient body-covering area and an elongation force upon theelongation of the fabric is likely to be applied to the body, wherebythe external rotation effect or the internal rotation effect can easilybe exerted. Conversely, when the vertical direction width of the innerfabric is 20 cm or less, the stretch balance of the inner fabric islikely to change when worn, and the force pulling the thighs outward orinward becomes stronger, whereby the external rotation effect orinternal rotation effect can easily be exhibited.

The inner fabric of the bottom garment of the present invention ischaracterized in that it is arranged on the inside of the body fabricand at least a part thereof is not joined with the body fabric. As usedherein, “not joined” means the fabrics are not always in close contactand affixed by means such as sewing or bonding, and the fabrics arefloating.

By overlapping at least a part of the inner fabric whose stress uponelongation is more than 1.6 times and 10 times or less that of the bodyfabric on the body fabric without joining it to the body fabric, and notjoining at least a part of the inner fabric, when worn or stationary,the stretch balance of the inner fabric changes from the front side tothe buttocks side, so that a force pulling the thighs outward or inwardis generated.

During walking, the inner fabric shifts according to the movement, andthe stretching balance of the inner fabric changes from the front sideto the buttocks side more than when stationary, whereby the forcepulling the thighs further outward or inward is generated. Due to theeffect of pulling the thighs, an external or internal rotational forceis generated on the lower leg, and a force for opening or closing thelegs is generated. It is believed that this action leads to an increasein stride length and walking speed. Furthermore, by applying an externalrotation force to knock-knees and an internal rotation forcebow-leggedness, it is believed that the position of the femur iscorrected in the normal direction, and the legs are more likely torotate outwards when standing, such as when walking, which furtherincreases stride length and walking speed.

In particular, since at least part of the inner fabric is not joined tothe body fabric, the effect of turning the leg outward can be obtainedby always pulling the leg surface with the inner fabric independently of(not following) the body fabric.

Further, in the bottom garment of the present embodiment, when thestress upon 80% elongation in the vertical direction of the product ofthe inner fabric is defined as A and the stress upon 80% elongation in ahorizontal direction of the product of the inner fabric is defined as B,0.1≤A/B<1.0, preferably 0.1≤A/B<0.7, more preferably 0.1≤A/B<0.5, andfurther preferably 0.1≤A/B<0.3.

By overlapping the inner fabric on the inside of the body fabric andsetting the ratio of the vertical direction and horizontal directionstresses upon 80% elongation of the inner fabric to within apredetermined range, and specifically, making the vertical directionmore likely to stretch than the horizontal direction in the innerfabric, during action, the inner fabric follows the extension of theskin and does not inhibit the action, whereby movement is facilitated,and the external rotation force or the internal rotation force can beefficiently applied to the body, whereby the rotation effect withrespect to the knee is large.

Therefore, a corrective effect on knock-knees and bow-leggedness can beexpected, and an excellent walking assistance effect can be achieved bywearing the bottom garment of the present invention.

In the bottom garment of the present embodiment, when the stress upon50% elongation in a horizontal direction of the product of the bodyfabric is defined as C and the stress upon 50% elongation in ahorizontal direction of the inner fabric is defined as D, 1.6<D/C≤10 ispreferable, 1.6<D/C≤8.0 is more preferable, 1.6<D/C≤6.0 is furtherpreferable, 1.6<D/C≤4.0 is even further preferable, and 1.6<D/C≤3.0 isparticularly preferable.

By setting the ratio of the stress C upon 50% elongation in a horizontaldirection of the body fabric and the stress D upon 50% elongation in ahorizontal direction of the inner fabric to within a predeterminedrange, and specifically, making the inner fabric less stretchable thanthe body fabric in the horizontal direction, the rotation effect withrespect to the knee is greater because the inner fabric can efficientlyapply external or internal rotation to the body by pulling the legsduring action.

However, if the horizontal direction elongation stress of the innerfabric is excessively large, the tightening feeling when worn will bestrong, whereby comfort will be reduced.

In this manner, in the bottom garment of the present embodiment, in theinner fabric, by increasing the horizontal direction elongation stress,i.e., making it unlikely to elongate, and making the vertical directionelongation stress small, i.e., making it more likely to elongate, it ispossible to achieve both the effect of pulling the legs to rotate themexternally or internally and the ease of movement during action.

The relationship between the horizontal direction elongation stress andthe vertical direction elongation stress of such a body fabric and innerfabric can be realized by, for example, in the body fabric, using thewarp direction of a warp knitted fabric in the horizontal direction(reverse use), and in inner fabric, using the warp direction of a warpknitted fabric in the vertical direction.

Examples of the arrangement of the preferred members of the bottomgarment of the present embodiment are shown in FIGS. 1 and 2.

In FIG. 1, the inner fabric is arranged so as to cover from the waist tothe lower part of the buttocks. In the arrangement of this fabric, sincethe amount of elongation from the waist to the buttocks of the innerfabric when worn is larger than the amount of elongation of the fabriccorresponding to the lower part of the buttocks, when the inner fabricis pulled toward the lower part of the buttocks, a force pulling thethighs outward (external rotation force) is generated, whereby theeffect of externally rotating the legs can be obtained.

In FIG. 2, the inner fabric is arranged from the base of the thigh orthe groin to the upper part of the buttocks or from the gluteal sulcusto the upper part of the thighs. In the arrangement of this fabric,since the amount of elongation when worn of the inner fabriccorresponding to the front part is larger than the amount of elongationof the inner fabric corresponding to the back part, when the innerfabric is pulled toward the front side, a force pulling the thighsinward (internal rotation force) is generated, whereby the effect ofinwardly rotating the legs can be obtained.

In the bottom garment of the present embodiment, the area ratio of theportion in which the inner fabric is not joined with the body fabric,relative to the total area of the inner fabric, is preferably 70% ormore, more preferably 80% or more, and further preferably 90% or more.If the area ratio is 70% or more, the body fabric and inner fabric tendto move differently, and it is easy to obtain the leg correction effect.

Joining is preferably performed at ends of the inner fabric, forexample, the upper end, lower end, and side end parts (the left andright ends of the inner fabric, the joint portions with the crotch part,and the joint portions with the front panel (also called the stomachpressing panel or panel) are collectively referred to as side end parts;refer to FIG. 1). It is preferable that 20% to 70% of the end portionsof the inner fabric not be joined, and the unjoined portions arepreferably the lower end portions of the inner fabric. Further, when theratio of the end portion of the inner fabric that is not joined to thebody fabric of the inner fabric is 20% to 100% with respect to the totallength of the lower end portion of the inner fabric, the stretch balanceof the inner fabric tends to change from the front side to the buttocksside or the back part, and the force for pulling the thigh parts to theoutside or the inside becomes strong, which is preferable. Note that thejoined portions and the non-joined portions may be continuous ordiscontinuous. A waist elastic may be installed on the waist portion.

When a stomach pressing panel is installed on the front surface by meansof a girdle or the like, it is preferable that the side edges of theinner fabric be joined to the left and right parts of the panel. Thevertical direction width of the product of the panel is preferably 5 cmto 20 cm, and it is preferable that the inner fabric be joined to oneside of the front panel, pass through the back center, and be joined tothe front panel on the other side.

In order to generate the above external rotation force, in a frontsurface of the bottom garment when laid flat, it is preferable that 70%or more of the joint portion of the side end part of the inner fabric belocated above the horizontal line passing through a point 5 cm above thecrotch part. The crotch part means the bifurcated apex at the lower partof the bottom shown in FIG. 1. As shown in FIG. 1, the portion indicatedby the thick solid line at both ends of the inner fabric is the jointportion of the side end part. If 70% of this thick solid line is locatedabove the horizontal line passing through the point 5 cm above thecrotch part, the external rotational force is likely to be generated.

Furthermore, in order to generate the internal rotation force, in afront surface of the bottom garment when laid flat, it is preferablethat 70% or more of the joint portion of the side end part of the innerfabric be joined below the horizontal line passing through the point 5cm above the crotch part. As shown in FIG. 2, the part represented bythe thick solid line at both ends of the inner fabric is the jointportion of the side end part, and if 70% of this thick solid line islocated below the horizontal line passing through the point 5 cm abovethe crotch part, the internal rotational force is likely to begenerated.

When the end of the inner fabric is above the region 5 cm above thecrotch part, the elongation of the inner fabric on the front is lessthan that on the back, and when it is below, the elongation of the innerfabric on the front surface is greater than that on the back surface,whereby external rotation force and internal rotation force aregenerated when worn.

Though the joining can be performed by sewing, bonding, etc., a methodwhich does not impair the elongation of the fabric is preferable, andtwo-needle stitching or staggered stitching is preferable for sewing,and joining with a width of 0.5 cm to 1.5 cm is preferable for bonding.Joining by bonding is more preferable because a difference in height ofthe joint portion is eliminated as compared with the case of sewing. Itis also preferable to use a free-cut material for the inner fabricbecause a difference in height at the ends thereof is eliminated.

The pressure of the bottom garment of the present embodiment applied tothe buttocks is preferably 5 hPa to 20 hPa, and more preferably 8 hPa to18 hPa. The pressure on the buttocks is the average of the pressure onthe left and right at the tops of the left and right hips (hip tops) atthe position where the circumference of the buttocks is the largest, andin medium-sized bottom garments, it is attached to an M size standardbody type mannequin and measured with an air pack type pressure gauge.Furthermore, in large-sized bottom garments, it is attached to a largesize standard body type mannequin and measured. When the pressure on thebuttocks is 5 hPa or more, the pressure is sufficiently large and theeffect of suppressing shaking during action is high, which ispreferable. Conversely, if the pressure on the buttocks is 20 hPa orless, the feeling of constriction can be reduced and wearing comfort isenhanced.

For bottom garments for athletes, it is preferable to use a slightlystronger pressure from the viewpoint of supporting exercise performance,and the pressure on the buttocks is preferably 10 hPa to 20 hPa. In thecase of bottom garments for athletes, polyester fibers are desirable asthe inelastic yarn used for the body fabric or inner fabric from theviewpoint of sweat treatment.

For bottom garments for the elderly, it is preferable to increase theease of wearing with a slightly weaker pressure, and the pressure on thebuttocks is preferably 5 hPa to 15 hPa. When the pressure on thebuttocks is within the above range, the ease of wearing is alsoimproved.

The inner fabric can be layered on the legs of shorts and compressionwear, and can suppress shaking of the thighs and calves.

Embodiment of Second Invention

The embodiment for carrying out the second present invention will bedescribed in detail below.

The bottom garment of the second present invention is composed of a bodyfabric and an inner fabric which comprise an elastic yarn, and in whichthere is present a double structure in which the inner fabric overlapsthe inside of the body fabric and at least a part of the inner fabric isnot joined to the body fabric, wherein a vertical direction center lineof the inner fabric is located below a part corresponding to the greatertrochanter in the vertical direction in a side part of the bottomgarment.

In the bottom garment of the second present invention, by overlappingthe inner fabric on the inside of the body fabric and arranging theinner fabric so that the vertical direction center line is located belowthe greater trochanter, tightening forces can be applied to positionscloser to the greater trochanter in the femur, whereby an externalrotation force or internal rotation force can be efficiently applied tothe body, and thus, the rotation effect with respect to the knee islarge. Thus, a corrective effect on bow-leggedness and knock-knees canbe expected, the effect of stabilizing the position of the pelvis in thecorrect position due to proper rotation of the lower limbs can beexpected. An excellent walking assist effect can be achieved by wearingthe bottom garment of the present invention.

Thus, the bottom garment of the present invention can be suitablyapplied to sports shorts, sports tights, undergarments for middle-agedand elderly people, children's uniforms or pants, compression bottomsfor pregnant women, etc.

In particular, the bottom garment of the present invention is preferablya sport garment, i.e., a bottom for sports. The above-mentioned effectscan be better realized.

The body fabric primarily constituting the bottom garment of the presentembodiment may comprise an inelastic yarn. The inelastic yarn used forthe body fabric primarily constituting the bottom garment of the presentembodiment is not particularly limited, and for example, syntheticfibers such as polyamide fibers, polyester fibers, acrylic fibers,polypropylene fibers, vinyl chloride fibers, etc., can be used. Thefineness of the synthetic fiber is preferably 20 dtex to 200 dtex.

Furthermore, the inelastic yarn may be either a filament yarn or a spunyarn. The form of the filament yarn may be any of a raw yarn(unprocessed yarn), a false twisted yarn, a dyed yarn, etc., or acomposite yarn thereof. The composite yarn is not particularly limitedand may be an air-blended yarn, combined twist, covering, false-twistmixed fiber, etc. The cross-sectional shape of the filament yarn is notparticularly limited, and may be a circular, triangular, cross-shaped,W-shaped, M-shaped, C-shaped, I-shaped, dog-bones-shaped, or hollowfiber.

The form of the spun yarn may be either single or mixed. The blendedspinning method is not particularly limited, but a spun yarn obtained bythe MVS method, in which pilling is less likely to occur, is preferable.

In the inelastic yarn, bright yarn, semi-dull yarn, fully-dull yarn,etc., can be arbitrarily selected.

Cellulose fibers may be used as a part of the inelastic yarn. Thecellulose fibers are also not particularly limited, and for example,cupra, rayon, bamboo fibers, cotton, modal, and lyocell can be used.

The cellulose fibers may be any of a raw yarn (unprocessed yarn), afalse twisted yarn, a dyed yarn, etc., in the form of a filament yarn,and may be a composite yarn thereof. Furthermore, the cellulose fibersmay be in the form of a spun yarn, either alone or in a blended manner.

The cellulose fibers are preferably cupra fibers. The fineness of thecellulose fibers used, in the case of a filament yarn, is preferably 30dtex to 200 dtex, more preferably 30 dtex to 170 dtex, and furtherpreferably 30 dtex to 120 dtex. Furthermore, in the case of a spun yarn,No. 60 to No. 30 spun yarns are preferable, and No. 50 to No. 40 spunyarns are more preferable. By mixing cellulose fibers, it is possible toobtain a bottom garment having excellent wearing feeling, excellentantistatic properties, and excellent bending softness due to thehygroscopicity thereof

In the bottom garment of the present embodiment, an elastic yarn is atleast partially arranged in the body fabric constituting the bottomgarment.

The elastic yarn partially arranged in the body fabric of the bottomgarment of the present embodiment refers to fibers having a breakingelongation of 100% or more. The polymer of the elastic yarn and thespinning method are not particularly limited, and examples thereofinclude polyurethane elastic yarns (also referred to as spandex orspandex fibers), polyether ester elastic yarns, polyamide elastic yarns,polyolefin elastic yarns, etc., and for example, as a polyurethaneelastic yarn, dry spinning or melt spinning can be used. Furthermore,these elastic yarns may be coated with an inelastic yarn so as toachieve a covered state. Furthermore, so-called rubber yarns, which arein the form of yarns composed of natural rubber, synthetic rubber, orsemi-synthetic rubber, can be used, but polyurethane elastic yarn, whichhas excellent elasticity and is generally widely used, is preferable.Thereamong, the diol component constituting the polyurethane polymerpreferably has a side chain, more preferably the side chain is a methylgroup, and further preferably has two methyl groups on the same carbon.

The breaking elongation of the elastic yarn is preferably 400% to 1000%from the viewpoint of imparting the fabric with suitable elasticity. Thebreaking elongation is a value measured by the method described in JISL1013 “8.5.1 Tensile Strength and Elongation.”

It is preferable that the elasticity of the elastic yarn not be impairedat approximately 180° C., which is the normal processing temperature inthe presetting process during the dyeing process. Furthermore, elasticyarn having functionality such as high settability, deodorant property,antibacterial property, hygroscopic property, and water absorptionproperty to which a special polymer or powder is added can also be used.Regarding the fineness of elastic yarn, fibers having a fineness ofapproximately 10 dtex to 700 dtex (decitex, the same symbol is usedbelow) can be used, and when looping with the elastic yarn, it ispreferable to use elastic yarn having a fineness of approximately 12dtex to 250 dtex, and when performing insertion knitting of elastic yarnusing a Raschel knitting machine, it is preferable to use elastic yarnhaving a fineness of 70 dtex to 700 dtex.

As the body fabric primarily constituting the bottom garment of thepresent embodiment, a woven fabric or a knitted fabric is used, which isappropriately selected in accordance with the item. A knitted fabric ispreferable from the viewpoint of elasticity.

In the case of warp knitting, a structure in which the elastic yarn isinserted or looped by a Raschel knitting machine or a tricot knittingmachine is preferably used. In the Raschel structure, a structure inwhich thick spandex fibers such as 6-course satin, 4-course satin,6-course tulle, and triconette are inserted is preferably used. A fabricin which two spandex fibers are inserted and the fabric is stretched inthe warp and weft directions is particularly preferable from theviewpoint of wearing comfort. In tricots, half tricots, double stitches,atlas structures, etc., are preferable because they have goodelasticity.

In the case of a circular knitting, it is preferable that the elasticyarn be looped.

As the body fabric, a woven fabric woven with elastic fibers is alsopreferably used, and in particular, a woven fabric in which elasticfibers are woven in both the warp and weft is preferable.

In the body fabric of the present embodiment as a product for generalconsumers, the stress upon 50% elongation in a horizontal direction ispreferably 0.3 N to 3 N, more preferably 0.3 N to 2.5 N, and furtherpreferably 0.5 N to 1.5 N. The elongation stress is measured using aTensilon tensile tester to stretch a 2.5 cm wide sample gripped at agrip interval of 10 cm at a tension rate of 300 mm/min, and to obtain astress at an elongation ratio of 50%. When the stress upon 50%elongation in a horizontal direction of the body fabric is 3 N or less,there is no excessive tightening at the time of wearing, achievingcomfort. Conversely, when the stress upon 50% elongation in a horizontaldirection of the body fabric is 0.3 N or more, the compensation effectis high. Furthermore, as a product for athletes with a large amount ofmuscle, it is preferable that the stress upon 50% elongation in ahorizontal direction of the body fabric be 0.3 N to 5 N, more preferably0.3 N to 4.5 N, and further preferably 0.5 N to 4.0 N.

Furthermore, the stress upon 50% elongation in a vertical direction ofthe body fabric is preferably 0.3 N to 4 N. When the stress upon 50%elongation in a vertical direction is 4 N or less, the ability to followaction during actions such as sitting and crouching is enhanced.Conversely, when it is 0.3 N or more, the compensation effect is high.As used herein, the “horizontal direction” refers to the peripheraldirection of the bottom product (the direction around the human bodywhen worn), and the “vertical direction” refers to the verticaldirection of the bottom product (the direction in which it is worn onthe human body).

When used for inners such as girdles and shorts, it is preferable thatthe hem on the leg side have a hem structure formed by pulling outthreads and a free-cut structure that can be used without fraying orcurling of threads on the cut surface. By using these, since it is notnecessary to sew the end portions, it is possible to prevent the endportion from becoming thick and to prevent the end portion fromcontacting the skin and leaving a mark on the skin. Furthermore, theline is not visible on the outer and is excellent in aesthetics. As thefree-cut material, for example, a mixed material of polyurethane and aninelastic fiber, which is easily heat-sealed, is preferably used, andnylon or polyester is preferably used as the inelastic yarn.

The bottom garment of the present embodiment is characterized by havinga double structure in which the inner fabric overlaps the inside (thehuman body side when worn) of the body fabric.

As the inner fabric, a woven fabric or knitted fabric is used, which isappropriately selected depending on the product, but a knitted fabric ispreferable from the viewpoint of elasticity. In the case of warpknitting, a structure in which the elastic yarn is inserted or looped bya Raschel knitting machine or a tricot knitting machine is preferablyused. In the Raschel structure, a structure in which thick spandexfibers such as 6-course satin, 4-course satin, 6-course tulle, andtriconette are inserted is preferably used. A fabric in which twospandex fibers are inserted and the fabric is stretched in the warp andweft directions is particularly preferable from the viewpoint of wearingcomfort. In Jacquard Raschel, there may be a difference in fabricstretch stress within the inner fabric panel. In tricots, half tricots,double stitches, atlas structures, etc., are preferable because theyhave good elasticity. In the case of a circular knitting, it ispreferable that the elastic yarn be looped. As the inner fabric, a wovenfabric woven with elastic fibers is preferably used, and in particular,a woven fabric in which elastic fibers are woven in both the warp andweft is preferable.

The stress upon 50% elongation in a horizontal direction of the innerfabric of the present embodiment is 0.3 times to 1.6 times the stressupon 50% elongation in a horizontal direction of the body fabric,preferably 0.3 times to 1.3 times, more preferably 0.3 times to 1.1times, further preferably 0.3 times to 0.9 times, and most preferably0.5 times to 0.9 times. When the stress upon 50% elongation in ahorizontal direction of the inner fabric is less than 0.3 times thehorizontal direction stress of the body fabric, the support effect isinferior, and conversely, when the stress upon 50% elongation in ahorizontal direction of the inner fabric exceeds 1.6 times thehorizontal direction stress of the body fabric, the stress of the innerfabric is excessively strong, bringing about inferior comfort.

In the inner fabric of the present embodiment, the area covered by theinner fabric is preferably 60% or less of the area of the buttocks fromthe viewpoint of efficiently exerting the external rotation force or theinternal rotation force. As used herein, the term “buttocks” refers tothe region from the left and right sides of the human body and thesupracristal plane (waist) to the gluteal sulcus. If the inner fabriccovers 60% or less of the area of the buttocks, the elongation balanceof the inner fabric is likely to change when worn, the force for pullingthe thighs outward or inward becomes strong and effective, and the areacovered is more preferably 50% or less.

The vertical direction width of the product of the inner fabric ispreferably 5 cm to 20 cm, and more preferably 5 cm to 18 cm. When thevertical direction width of the inner fabric is 5 cm or more, there is asufficient body-covering area and an elongation force upon theelongation of the fabric is likely to be applied to the body, wherebythe external rotation effect or the internal rotation effect can easilybe exerted. Conversely, if the vertical direction width of the innerfabric is 20 cm or less, the stretch balance of the inner fabric islikely to change when worn, and the force pulling the thighs outward orinward becomes stronger, whereby the external rotation effect orinternal rotation effect can easily be exhibited.

The inner fabric of the bottom garment of the present invention ischaracterized in that it is arranged on the inside of the body fabricand at least a part thereof is not joined with the body fabric. As usedherein, “not joined” means the fabrics are not always in close contactand fixed by means such as sewing or bonding, and the fabrics arefloating.

By overlapping at least a part of the inner fabric whose stress uponelongation is 0.3 times to 1.6 times that of the body fabric on the bodyfabric without jointing it to the body fabric, the effect of rotatingthe legs is exhibited. Furthermore, by not jointing at least a part ofthe inner fabric, when worn or stationary, the stretch balance of theinner fabric changes from the front side to the buttocks side, so that aforce pulling the thighs outward or inward is generated.

During walking, the inner fabric shifts according to the movement, andthe stretching balance of the inner fabric changes from the front sideto the buttocks side more than when stationary, whereby the forcepulling the thighs further outward or inward is generated. Due to theeffect of pulling the thighs, an external or internal rotational forceis generated on the lower leg, and a force for opening or closing thelegs is generated. It is believed that this action leads to an increasein stride length and walking speed. Furthermore, by applying an externalrotation force to knock-knees and an internal rotation forcebow-leggedness, it is believed that the position of the femur iscorrected in the normal direction, and the legs are more likely torotate outwards when standing, such as when walking, which furtherincreases stride length and walking speed.

In particular, since at least part of the inner fabric is not joined tothe body fabric, the effect of turning the legs outward can be obtainedby always pulling with the inner fabric independently of (not following)the body fabric.

Further, in the bottom garment of the present embodiment, as shown inFIG. 3, the vertical direction center line of the inner fabric islocated below a part corresponding to the greater trochanter in thevertical direction in the side part of the bottom garment.

The vertical direction center line is a line connecting the central partof the inner fabric in the vertical direction, and is indicated by thefine dotted line in the drawing.

By arranging the inner fabric so that the vertical direction center lineis located under the greater trochanter of the wearer, a tighteningforce can be applied to positions closer to the greater trochanter inthe femur, and the femur can be efficiently rotated by the forces fromthe side (outside) to the inside or forces from the inside to the side.As a result, a corrective effect on bow-leggedness and knock-knees canbe expected, and the lower limbs can be properly rotated so that theposition of the pelvis can be maintained in the correct position.

It is preferable that the upper end portion of the inner fabric belocated below a part corresponding to the greater trochanter in thevertical direction in the side part of the bottom garment.

By arranging the inner fabric in the side part so that the upper end islocated lower than the part corresponding to the greater trochanter inthe vertical direction, a corrective effect can be obtained withoutapplying a tightening force to the greater trochanter, whereby movementis unlikely to be inhibited during action, and the bottom can easilymove.

Further, it is preferable that the shortest distance between the upperend portion of the inner fabric and the part corresponding to thegreater trochanter in the side part be 0 to 10 cm.

By applying a tightening force to the femur closer to the greatertrochanter, the corrective effect can be obtained efficiently.

FIGS. 3 to 11 show examples of preferable arrangement of each member inthe bottom garment of the present embodiment.

In FIGS. 3 to 6, the inner fabric is arranged so as to cover the lowerpart of the buttocks or the thighs from the waist or the groin. In thearrangement of this fabric, the inner fabric is pulled from the waist orgroin toward the lower buttocks or thighs when worn, whereby the effectof externally rotating the legs can be obtained by generating a force(external rotation force) pulling the thighs outward.

When the arrangement of the inner fabric is as shown in FIG. 3, A>B>C,and when the distance between the greater trochanter and the upper endof the inner fabric is short, the external rotation force is effectivelygenerated.

When the arrangement of the inner fabric is as shown in FIG. 4, A=B>C,and a lesser external rotation force than in FIG. 3 is generated.

When the arrangement of the inner fabric is as shown in FIG. 5, A>B>C,but the inclination of the inner fabric is smaller than in FIG. 3, and alesser external rotation force than in FIG. 3 is generated.

When the arrangement of the inner fabric is as shown in FIG. 6, A>B>C,but since the upper end of the inner fabric or the vertical directioncenter line of the inner fabric is above the part corresponding to thegreater trochanter, there is a greater feeling of movement restrictionthan in the case of the arrangement of FIG. 3. When the upper end of theinner fabric is above the part corresponding to the greater trochanter,an external rotation force less than that of the case of the arrangementof FIG. 3 is generated, and when the upper end of the inner fabric andthe vertical direction center line of the inner fabric are above thepart corresponding to the greater trochanter, the external rotationforce is less likely to be generated.

In FIGS. 7 to 11, the inner fabric is arranged so as to cover the lowerpart of the buttocks or the rear part of the thighs from the front partor groin of the thighs. In the arrangement of this fabric, the effect ofinwardly rotating the legs can be obtained by generating a force(internal rotation force) pulling the inner fabric from the lower partof the buttocks or the rear part of the thighs to the front part of thethighs or the groin when worn.

When the arrangement of the inner fabric is as shown in FIG. 7, B>A andB>C, and when the distance between the greater trochanter and the upperend of the inner fabric is short, the internal rotational force iseffectively generated.

When the arrangement of the inner fabric is as shown in FIG. 8, A=B=C,and a lesser internal rotational force than in FIG. 7 is generated.

When the arrangement of the inner fabric is as shown in FIG. 9, B<A andB<C, and a lesser internal rotational force than in FIG. 8 is generated.

When the arrangement of the inner fabric is as shown in FIG. 10, B>A andB>C, but the inclination of the inner fabric in the front portion issmaller than in FIG. 7, and a lesser internal rotational force than inFIG. 7 is generated.

When the arrangement of the inner fabric is as shown in FIG. 11, B>A andB>C, but the inclination of the inner fabric on the back surface issmaller than in FIG. 7, and a lesser internal rotational force isgenerated than in FIG.

In the bottom garment of the present embodiment, the area ratio of theportion in which the inner fabric is not joined with the body fabric,relative to the total area of the inner fabric, is preferably 70% ormore, more preferably 80% or more, and further preferably 90% or more.It is preferable that the area ratio be 70% or more because the effectof rotating the legs can be obtained, and the bottom can easily move.

Joining is preferably performed at ends of the inner fabric, forexample, the upper end, lower end, and side end parts (the left andright ends of the inner fabric, the joint portions with the crotch part,and the joint portions with the front panel (also called the stomachpressing panel or panel) are collectively referred to as side end parts;refer to FIG. 3).

It is preferable that 20% to 70% of the end portions of the inner fabricnot be joined, and the unjoined portions are preferably the lower endportions of the inner fabric. Further, when the ratio of the end portionof the inner fabric that is not joined to the body fabric of the innerfabric is 20% to 100% with respect to the total length of the lower endportion of the inner fabric, the stretch balance of the inner fabrictends to change from the front side to the buttocks side or the backpart, and the force for pulling the thigh parts to the outside or theinside becomes strong, which is preferable. Note that the joinedportions and the non-joined portions may be continuous or discontinuous.

In particular, in the bottom garment of the present embodiment, it ispreferable that 80% or more of the side end part of the inner fabric abottom rear surface be joined to the body fabric at the thigh part.

By arranging the inner fabric so that the inclination from the side partto the thigh part becomes large, the effect of rotating the legs can beobtained.

When a stomach pressing panel is installed on the front surface by meansof a girdle or the like, it is preferable that the side edges of theinner fabric be joined to the left and right parts of the panel. Thevertical direction width of the product of the panel is preferably 5 cmto 20 cm, and it is preferable that the inner fabric be joined to oneside of the front panel, pass through the back center, and be joined tothe front panel on the other side. When the stomach pressing panel isnot installed on the front surface of a sports bottom or the like, it ispreferable that the upper ends and the side ends of the inner fabric bejoined to the waist portion or arbitrary parts of the body fabric. Theleft and right sides of the inner fabric may overlap.

In order to generate the above external rotation force, in a frontsurface of the bottom garment when laid flat, it is preferable that 70%or more of the joint portion of the side end part of the inner fabric belocated above the horizontal line passing through a point 5 cm above thecrotch part. The crotch part means the bifurcated apex at the lower partof the bottom shown in FIG. 3. As shown in FIG. 3, the portion indicatedby the thick solid line at both ends of the inner fabric is the jointportion of the side end part. If 70% of this thick solid line is locatedabove the horizontal line passing through the point 5 cm above thecrotch part, the external rotational force is likely to be generated.

When the end of the inner fabric is above the region 5 cm above thecrotch part, the stretching of the inner fabric on the front surface isless than on the back surface, whereby the external rotation force isgenerated when worn.

In particular, in the bottom garment of the present embodiment, as shownin FIG. 3, when the vertical direction highest point of a side end partof the inner fabric in a front surface of the bottom garment is definedas A, a vertical direction highest point of the inner fabric in a bottomgarment side part is defined as B, and a vertical direction highestpoint of the side end part of the inner fabric in a rear surface of thebottom garment is defined as C, it is preferable that the verticaldirection height satisfy A>B>C.

The presence of the inner fabric in a spiral shape from the upper partof the front surface to the side parts to the back surface allows thethighs to be pulled outward when worn to effectively generate theexternal rotational force.

Furthermore, it is preferable that the inner fabric be joined with thebody fabric in the front surface of the bottom garment in the verticaldirection above the plane perpendicular to the vertical direction of thebottom garment including the crotch part.

In the arrangement of this fabric, since the amount of elongation of theinner fabric corresponding to the lower part of the buttocks when wornis greater than the amount of extension from the waist to the buttocks,when the inner fabric is pulled toward the lower part of the buttocks, aforce pulling the thighs outward (external rotation force) is generated,whereby the effect of externally rotating the legs can be obtained.

Furthermore, in order to generate the internal rotation force, in afront surface of the bottom garment when laid flat, it is preferablethat 70% or more of the joint portion of the side end part of the innerfabric be joined below the horizontal line passing through the point 5cm above the crotch part. As shown in FIG. 5, the part represented bythe thick solid line at both ends of the inner fabric is the jointportion of the side end part, and if 70% of this thick solid line islocated below the horizontal line passing through the point 5 cm abovethe crotch part, the internal rotational force is likely to begenerated.

When the end of the inner fabric is below the region 5 cm above thecrotch part, the elongation of the inner fabric on the front is lessthan that on the back, the elongation of the inner fabric on the frontsurface is greater than that on the back surface, whereby internalrotation force is generated when worn.

In particular, in the bottom garment of the present embodiment, as shownin FIG. 7, when the vertical direction highest point of a side end partof the inner fabric in a front surface of the bottom garment is definedas A, a vertical direction highest point of the inner fabric in a bottomgarment side part is defined as B, and a vertical direction highestpoint of the side end part of the inner fabric in a rear surface of thebottom garment is defined as C, it is preferable that the verticaldirection height satisfy B>A and B>C.

Since the inner fabric arrangement from the front side to the side partis B>A, B becomes a position closer to the greater trochanter, and thethighs can be pulled inward when worn to effectively generate theinternal rotational force. In addition, by setting B>C on the backsurface, movement is not inhibited during action, and the bottom caneasily move.

Furthermore, it is preferable that 80% or more of the side end parts ofthe inner fabric in the bottom front surface be joined to the bodyfabric at the thighs.

The inclination of the inner fabric increases from the front side to theside part, whereby the correction effect can be enhanced.

Though the joining can be performed by sewing, bonding, etc., a methodwhich does not impair the elongation of the fabric is preferable, andtwo-needle stitching or staggered stitching is preferable for sewing,and joining with a width of 0.5 cm to 1.5 cm is preferable for bonding.Joining by bonding is more preferable because a difference in height ofthe joint portion is eliminated as compared with the case of sewing. Itis also preferable to use a free-cut material for the inner fabricbecause a difference in height at the ends thereof is eliminated.

The pressure of the bottom garment of the present embodiment applied tothe buttocks is preferably 5 hPa to 20 hPa, and more preferably 8 hPa to18 hPa. The pressure on the buttocks is the average of the pressure onthe left and right at the tops of the left and right hips (hip tops) atthe position where the circumference of the buttocks is the largest, andin medium-sized bottom garments, it is attached to an M size standardbody type mannequin and measured with an air pack type pressure gauge.Furthermore, in large-sized bottom garments, it is attached to a largesize standard body type mannequin and measured. When the pressure on thebuttocks is 5 hPa or more, the pressure is sufficiently large and theeffect of rotating the legs is high, which is preferable. Conversely, ifthe pressure on the buttocks is 20 hPa or less, action is not inhibitedduring exercise, which is preferable.

For bottom garments for athletes, it is preferable to use a slightlystronger pressure from the viewpoint of supporting exercise performance,and the pressure on the buttocks is preferably 10 hPa to 20 hPa. In thecase of bottom garments for athletes, polyester fibers are desirable asthe inelastic yarn used for the body fabric or inner fabric from theviewpoint of sweat treatment.

For bottom garments for the elderly, it is preferable to increase theease of wearing with a slightly weaker pressure, and the pressure on thebuttocks is preferably 5 hPa to 15 hPa. When the pressure on thebuttocks is within the above range, the ease of wearing is alsoimproved.

EXAMPLES First Examples

The first present invention will be specifically described below by wayof Examples and Comparative Examples. Note that the measurement, etc.,of the elongation stress in the Examples and Comparative Examples isperformed as described below.

(1) Vertical Direction and Horizontal Direction 50% and 80% ElongationStresses, Elongation Recovery Rates

Using a Tensilon tensile tester, a 2.5 cm wide sample gripped at agripping interval of 10 cm is repeatedly subjected to an elongation rateof 0% to 80% and a recovery rate of 80% to 0% at a tensile speed of 300mm/min three times, and the elongation load and recovery load for eachof the vertical direction and horizontal direction are measured, and anelongation recovery curve is drawn. The stresses of the elongation ratesof 50% and 80% in the first elongation are read and set as verticaldirection and horizontal direction 50% and 80% elongation loads. If itis not possible to secure a gripping length of 10 cm due tocircumstances of the production shape, elongation is performed at thepossible gripping interval. If the width cannot be secured at 2.5 cm, avalue is calculated by converting the measured width to 2.5 cm using thefollowing formula.

Elongation load at 2.5 cm width [cN]={2.5 cm/(measured fabric width[cm])}×measured elongation load [cN]

Regarding the elongation recovery rate, the third residual elongation(%) in the above-mentioned elongation stress measurement is read fromthe elongation recovery curve for each of the vertical direction and thehorizontal direction, and the elongation recovery rate (%) in thevertical direction and the horizontal direction are calculated from thefollowing formula:

Elongation recovery rate (%)={[80−(residual elongation)]÷80}×100

Note that the fabric used for measurement is sampled from the bottomgarment so as not to partially include a portion having a highelongation stress, such as a joint portion or an embroidered portion.

(2) Ratio of Region of Inner Fabric that is not Joined to Body Fabric

When the area of the inner fabric overlapping the body fabric is definedas S (cm²) and the area of the joint portion is defined as S′ (cm²), theratio of the region of the inner fabric that is not joined to the bodyfabric can be calculated by the following formula:

Ratio of region of inner fabric that is not joined to bodyfabric=(S−S′)/S×100 (%)

Note that when the areas S and S′ cannot be obtained, the above ratio iscalculated by obtaining the weight of a paper pattern or clothcorresponding to the area of the paper pattern or the area of the cloth,respectively, and replacing the area of the above formula with theweight.

(3) Ratio of Lower Ends of Inner Fabric not Joined to Body Fabric

When the end arranged downward when the inner fabric is worn (excludingthe side end parts) is defined as P (cm), and the ends arranged downwardwhen worn and joined to the body fabric are defined as P′ (cm), theratio of the lower ends of the inner fabric not joined to the bodyfabric can be calculated from the following formula:

Ratio of lower ends of inner fabric not joined to bodyfabric=(P−P′)/P×100 (%)

(4) Area Ratio where Inner Fabric Covers Buttocks

In the bottom garment, when the area of the buttock region surrounded bythe waist, left and right side lines, and gluteal sulcus is defined as K(cm²), and the area within this area where the inner fabric is presentis defined as K′ (cm²), the area ratio where the inner fabric covers thebuttocks can be calculated from the following formula:

Area ratio where inner fabric covers buttocks=K′/K×100 (%)

Note that when calculating this area, the bottom garment is placed on amedium-sized mannequin, and the K of the bottom garment with respect tothe buttock region K′ of the mannequin is measured.

(5) Pressure

An air pack connected to an AMI-3037-10 pressure measuring devicemanufactured by AMI Techno Co., Ltd. is attached to the left and righthip top (top of buttock protrusion) parts and abdomen (3 cm below thenavel) of a standard medium-sized mannequin, and the pressure (kPa) whenthe medium-sized bottom garment of the present embodiment is worn ismeasured repeatedly by performing desorption three times, and theaverage thereof is calculated.

(6) Hip Torque

Five subjects aged 20 to 40 were made to wear the bottom garment, andusing a HUMAC NORM (manufactured by CSMi), the angle between the hipjoint and the thigh in the supine position is set to neutral 0°, andwhen the thigh is raised and bent until the angle between the hip jointand the thigh becomes 120°, the force applied when raising the leg inthe center of the thigh part was used as the torque for measurement.

(7) Knee Angle Θ

Five subjects aged 20 to 40 were made to wear the bottom garment, and inthe static standing position, as shown in FIG. 12, reflex markers wereattached at the iliac point, the center of the patella, and the lateralmalleolus point, and an action analysis system (VENUS 3D: manufacturedby Nobby-Tech. Ltd.) was used to measure the knee angle from the iliacpoint, the center of the patella, and the lateral malleolus point (Θshown in FIG. 12: representing the internal angle of the knee as seenfrom the front). The degree of effect was calculated by the followingformula.

Knee angle Θ[°]=(angle between iliac point, center of patella, andlateral malleolus when wearing bottom garment)−(angle between iliacpoint, center of patella, and lateral malleolus when not worn)

When the external rotation force is exerted and the knee is externallyrotated, Θ becomes a negative value, and when the internal rotationforce is exerted and the knee is internally rotated, Θ becomes apositive value. Furthermore, the larger the absolute value of Θ, thegreater the action of internal rotation or external rotation.

(8) Wearing Feeling

Five subjects evaluated the overall tightening feeling, ease ofmovement, and leg correction according to the following criteria, andthe average thereof is calculated.

<Tightening Feeling>

5: Very comfortable

4: Somewhat comfortable

3: Unclear

2: Somewhat uncomfortable

1: Very uncomfortable

<Ease of Movement>

5: Very easy to move

4: Easy to move

3: Unclear

2: Slightly difficult to move

1: Very difficult to move

<Correction Feeling>

5: Strong corrective power

4: Some corrective power

3: Unclear

2: Little corrective power

1: Substantially no corrective power

Example 1

Regarding the fabric for the body fabric and inner fabric, using asingle tricot machine, a full set of 56 dtex 36 polyester filament wasthreaded onto the front loom and 56 dtex polyurethane fibers werethreaded on the rear loom, the front structure was organized in 1-0/2-3and the back structure was organized in 1-2/1-0, and finishing wasperformed by a conventional method.

The warp direction of the fabric as a knitted fabric was arranged in thehorizontal direction of the product, and a body fabric and an innerfabric were produced in a JASPO (Japan Sporting Goods IndustryAssociation) unisex medium size unisex with the pattern of FIG. 1.Furthermore, in the inner fabric, the warp direction of the fabric as aknitted fabric was arranged in the vertical direction of the product.Sewing was performed using a seamer sewing machine. The upper side andside end parts of the inner fabric were sewn with the body fabric usingthe seaming sewing machine to produce a bottom garment.

The results of wearing evaluations are shown in Table 1 below along withthe characteristics of the fabrics and garment.

Example 2

A bottom garment was produced in the same manner as Example 1, exceptthat the inner fabric was finished in a state in which little tensionwas applied to the fabric in the horizontal direction during processing.

The results of wearing evaluations are shown in Table 1 below along withthe characteristics of the fabrics and garment.

Example 3

A bottom garment was produced in the same manner as Example 1, exceptthat regarding the inner fabric, using a single tricot machine, a fullset of 56 dtex 36 polyester filament was threaded onto the front loomand 56 dtex polyurethane fibers were threaded on the rear loom, thefront structure was organized in 1-0/2-3 and the back structure wasorganized in 2-0/1-3.

The results of wearing evaluations are shown in Table 1 below along withthe characteristics of the fabrics and garment.

Example 4

A bottom garment was produced in the same manner as Example 3, exceptthat regarding the body fabric, using a single tricot machine, a fullset of 44 dtex 24 polyester filament was threaded onto the front loomand 44 dtex polyurethane fibers were threaded on the rear loom, thefront structure was organized in 1-0/2-3 and the back structure wasorganized in 1-2/1-0.

The results of wearing evaluations are shown in Table 1 below along withthe characteristics of the fabrics and garment.

Example 5

A bottom garment was produced in the same manner as Example 4, exceptthat regarding the inner fabric, using a single tricot machine, a fullset of 56 dtex 36 polyester filament was threaded onto the front loomand 56 dtex polyurethane fibers were threaded on the rear loom, thefront structure was organized in 1-0/1-2 and the back structure wasorganized in 2-0/1-3.

The results of wearing evaluations are shown in Table 1 below along withthe characteristics of the fabrics and garment.

Example 6

A bottom garment was produced in the same manner as Example 5, exceptthat regarding the inner fabric, using a single tricot machine, a fullset of 44 dtex 24 polyester filament was threaded onto the front loomand 44 dtex polyurethane fibers were threaded on the rear loom, thefront structure was organized in 1-0/2-3 and the back structure wasorganized in 1-2/1-0.

The results of wearing evaluations are shown in Table 1 below along withthe characteristics of the fabrics and garment.

Example 7

A bottom garment was produced in the same manner as Example 5, exceptthat regarding the inner fabric, using a single tricot machine, a fullset of 44 dtex 24 polyester filament was threaded onto the front loomand 33 dtex polyurethane fibers were threaded on the rear loom, thefront structure was organized in 1-0/4-5, the middle structure wasorganized in 2-3/1-0, and the back structure was organized in 1-0/1-2.

The results of wearing evaluations are shown in Table 1 below along withthe characteristics of the fabrics and garment.

Example 8

A bottom garment was produced in the same manner as Example 1 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 2.

The results of wearing evaluations are shown in Table 1 below along withthe characteristics of the fabrics and garment.

Example 9

A bottom garment was produced in the same manner as Example 3 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 2.

The results of wearing evaluations are shown in Table 1 below along withthe characteristics of the fabrics and garment.

Example 10

A bottom garment was produced in the same manner as Example 4 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 2.

The results of wearing evaluations are shown in Table 1 below along withthe characteristics of the fabrics and garment.

Example 11

A bottom garment was produced in the same manner as Example 5 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 2.

The results of wearing evaluations are shown in Table 1 below along withthe characteristics of the fabrics and garment.

Example 12

A bottom garment was produced in the same manner as Example 7 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 2.

The results of wearing evaluations are shown in Table 1 below along withthe characteristics of the fabrics and garment.

Comparative Example 1

A bottom garment was produced in the same manner as Example 1, exceptthat regarding the body fabric, the warp direction as a knitted fabricwas arranged in the horizontal direction of the product.

The results of wearing evaluations are shown in Table 2 below along withthe characteristics of the fabrics and garment.

Comparative Example 2

A bottom garment was produced in the same manner as Comparative Example1, except that regarding the inner fabric, using a single tricotmachine, a full set of 56 dtex 36 polyester filament was threaded ontothe front loom and 56 dtex polyurethane fibers were threaded on the rearloom, the front structure was organized in 1-0/1-2 and the backstructure was organized in 1-2/1-0.

The results of wearing evaluations are shown in Table 2 below along withthe characteristics of the fabrics and garment.

Comparative Example 3

A bottom garment was produced in the same manner as Comparative Example1, except that regarding the inner fabric, using a single tricotmachine, a full set of 56 dtex 36 polyester filament was threaded ontothe front loom and 78 dtex polyurethane fibers were threaded on the rearloom, the front structure was organized in 1-0/2-3 and the backstructure was organized in 2-0/1-3.

The results of wearing evaluations are shown in Table 2 below along withthe characteristics of the fabrics and garment.

Comparative Example 4

Regarding the fabric for the inner fabric, A 240 dtex composite yarn inwhich a 165 dtex polyester two-heater processed yarn was wound on a 78dtex polyurethane fiber that has been elongated three times under thecondition of 800 T/m was wound on a beam as a warp and set on a loom,two beams per loom were placed in a 45-tooth/inch loom, and a CSY 340dtex composite yarn was used in the weft to produce a woven fabrichaving a taffeta structure at 54 lines/inch. The obtained woven fabricwas relaxed and scoured with a continuous scouring machine, then presetat 185° C. for 1 minute, and then dyed with polyester with a liquid flowdyeing machine, after dyeing, a soft finishing agent was padded, and abottom garment was produced in the same manner as Comparative Example 1except that the stretchable woven fabric obtained by performing thefinishing set at 160° C. for 1 minute was used by arranging the warpdirection as the woven fabric in the horizontal direction of theproduct.

The results of wearing evaluations are shown in Table 2 below along withthe characteristics of the fabrics and garment.

Comparative Example 5

A bottom garment was produced in the same manner as Comparative Example1 except that the body fabric and inner fabric were produced with thepattern of FIG. 2.

The results of wearing evaluations are shown in Table 2 below along withthe characteristics of the fabrics and garment.

Comparative Example 6

A bottom garment was produced in the same manner as Comparative Example3 except that the body fabric and inner fabric were produced with thepattern of FIG. 2.

The results of wearing evaluations are shown in Table 2 below along withthe characteristics of the fabrics and garment.

Comparative Example 7

A bottom garment was produced in the same manner as Comparative Example4 except that the body fabric and inner fabric were produced with thepattern of FIG. 2.

The results of wearing evaluations are shown in Table 2 below along withthe characteristics of the fabrics and garment.

TABLE 1 Ex 1 Ex 2 Ex 3 Ex 4 Ex 5 Ex 6 Pattern FIG. 1 FIG. 1 FIG. 1 FIG.1 FIG. 1 FIG. 1 Body fabric Basis weight [g/m2] 243 243 243 174 174 174Thickness [mm] 0.61 0.61 0.61 0.426 0.426 0.426 Horizontal 50% stress C[N] 2.3 2.3 2.3 1.9 1.8 1.8 Elongation recovery rate [%] 84 84 84 95 9595 Inner fabric Basis weight [g/m2] 243 94 230 230 140 202 Thickness[mm] 0.61 0.271 0.68 0.68 0.32 0.52 Horizontal 50% stress D [N] 4.5 5.012.1 12.1 20.9 6.0 Horizontal 50% stress B [N] 6.9 7.1 15.1 15.1 22.17.2 Vertical 80% stress A [N] 2.9 2.3 4.2 4.2 4.8 3.2 Elongationrecovery rate [%] 88 89 87 87 85 88 Stress ratio, inner fabrichorizontal/body fabric horizontal = D/C [—] 1.95 2.16 5.25 6.36 11.603.33 Stress ratio, inner fabric vertical /inner fabric horizontal = A/B[—] 0.42 0.32 0.28 0.28 0.22 0.44 Area ratio where inner fabric is notjoined with body fabric [%] 97 97 97 97 97 97 Ratio of lower ends ofinner fabric not joined to body fabric [%] 92 92 92 92 92 92 Area ratiowhere inner fabric covers buttocks [%] 48 48 48 48 48 48 Pressure Hiptops [hPa] 14 18 20 22 24 17 Stomach [hPa] 10 12 15 18 22 12 Hip torque[Nm] 20 22 28 37 42 23 Knee angle [deg.] −7.2 −7 −8 −8.5 −10.2 −6.8Wearing feeling Tightening feeling [—] 4.8 4.8 4.6 4.2 4 4.6 Ease ofmovement [—] 4.8 4.6 4.4 4.4 4.2 4.6 Correction feeling [—] 4.6 4.6 4.64.8 4.8 4.6 Ex 7 Ex 8 Ex 9 Ex 10 Ex 11 Ex 12 Pattern FIG. 1 FIG. 2 FIG.2 FIG. 2 FIG. 2 FIG. 2 Body fabric Basis weight [g/m2] 174 243 243 174174 174 Thickness [mm] 0.426 0.61 0.61 0.426 0.426 0.426 Horizontal 50%stress C [N] 1.8 1.8 1.8 1.8 1.8 1.8 Elongation recovery rate [%] 95 8484 95 95 95 Inner fabric Basis weight [g/m2] 281 243 230 230 140 281Thickness [mm] 1.12 0.61 0.68 0.68 0.32 1.12 Horizontal 50% stress D [N]3.4 4.5 12.1 12.1 20.9 3.4 Horizontal 50% stress B [N] 4.3 6.9 15.1 15.122.1 4.3 Vertical 80% stress A [N] 3.4 2.9 4.2 4.2 4.8 3.4 Elongationrecovery rate [%] 85 88 87 87 85 85 Stress ratio, inner fabrichorizontal/body fabric horizontal = D/C [—] 1.91 2.49 6.71 6.71 11.601.91 Stress ratio, inner fabric vertical /inner fabric horizontal = A/B[—] 0.79 0.42 0.28 0.28 0.22 0.79 Area ratio where inner fabric is notjoined with body fabric [%] 97 93 93 93 93 93 Ratio of lower ends ofinner fabric not joined to body fabric [%] 92 93 93 93 93 93 Area ratiowhere inner fabric covers buttocks [%] 48 9 9 9 9 9 Pressure Hip tops[hPa] 18 10 12 15 14 16 Stomach [hPa] 15 10 11 10 12 12 Hip torque [Nm]25 13 16 20 24 18 Knee angle [deg.] −6.8 6.6 7.4 8.4 9.3 6.4 Wearingfeeling Tightening feeling [—] 4.8 4.6 4.4 4 3.8 4.6 Ease of movement[—] 4.4 4.6 4.6 4.4 4.2 4.2 Correction feeling [—] 4.6 4.4 4.6 4.6 4.84.2

TABLE 2 Comp Ex 1 Comp Ex 2 Comp Ex 3 Comp Ex 4 Pattern FIG. 1 FIG. 1FIG. 1 FIG. 1 Body fabric Basis weight [g/m2] 243 243 174 174 Thickness[mm] 0.61 0.61 0.426 0.426 Horizontal 50% stress C [N] 2.3 2.3 1.8 1.8Elongation recovery rate [%] 84 84 84 84 Inner fabric Basis weight[g/m2] 243 223 201 195 Thickness [mm] 0.61 0.72 0.59 0.32 Horizontal 50%stress D [N] 1.4 6.3 8.8 19.9 Horizontal 50% stress B [N] 2.9 9 11 22.1Vertical 80% stress A [N] 6.9 11.5 30.2 30.2 Elongation recovery rate[%] 88 86 83 75 Stress ratio, inner fabric horizontal/body fabrichorizontal = [—] 0.60 2.74 4.89 11.05 D/C Stress ratio, inner fabricvertical /inner fabric horizontal = [—] 2.38 1.28 2.75 1.37 A/B Arearatio where inner fabric is not joined with body fabric [%] 97 97 97 97Ratio of lower ends of inner fabric not joined to body fabric [%] 92 9292 92 Area ratio where inner fabric covers buttocks [%] 48 48 48 48Pressure Hip tops [hPa] 18 22 24 20 Stomach [hPa] 14 18 20 22 Hip torque[Nm] 47 52 57 60 Knee angle [deg.] −2.1 −3.5 −5.4 −6.2 Wearing feelingTightening feeling [—] 4 3.8 3.6 3.6 Ease of movement [—] 2.8 3 2.6 2Correction feeling [—] 3.2 3.4 4 4.2 Comp Ex 5 Comp Ex 6 Comp Ex 7Pattern FIG. 2 FIG. 2 FIG. 2 Body fabric Basis weight [g/m2] 243 174 174Thickness [mm] 0.61 0.426 0.426 Horizontal 50% stress C [N] 2.3 1.8 1.8Elongation recovery rate [%] 84 84 84 Inner fabric Basis weight [g/m2]243 201 195 Thickness [mm] 0.61 0.59 0.32 Horizontal 50% stress D [N]1.4 8.8 19.9 Horizontal 50% stress B [N] 2.9 11 22.1 Vertical 80% stressA [N] 6.9 30.2 30.2 Elongation recovery rate [%] 88 83 75 Stress ratio,inner fabric horizontal/body fabric horizontal = [—] 0.60 4.89 11.05 D/CStress ratio, inner fabric vertical /inner fabric horizontal = [—] 2.382.75 1.37 A/B Area ratio where inner fabric is not joined with bodyfabric [%] 93 93 93 Ratio of lower ends of inner fabric not joined tobody fabric [%] 93 93 93 Area ratio where inner fabric covers buttocks[%] 9 9 9 Pressure Hip tops [hPa] 18 22 20 Stomach [hPa] 16 18 20 Hiptorque [Nm] 35 39 46 Knee angle [deg.] 2.4 3.2 4.1 Wearing feelingTightening feeling [—] 3.2 3 2.8 Ease of movement [—] 2.6 3.6 3.2Correction feeling [—] 2.8 3 3.4

From Tables 1 and 2, since the ratio of the stress A upon 80% elongationin the vertical direction of the product of the inner fabric to thestress B upon 80% elongation in a horizontal direction of the product ofthe inner fabric satisfied 0.1≤A/B<1.0, the effect of internal orexternal rotation on the knee was suitably obtained. Further,appropriate tightening feeling, ease of movement, and correction feelingcould be simultaneously achieved.

Thus, the bottom garment of the present invention does not inhibit theease of movement during action and has an excellent rotation effect withrespect to the knee.

Second Examples

Next, Regarding the second present invention, the present embodimentswill be specifically described below by way of Examples and ComparativeExamples. However, the second present invention is not limited to thefollowing Examples as long as there is no deviation from the spiritthereof. The physical properties in the Examples were measured by thefollowing methods.

(1) Horizontal Direction 50% Elongation Stress, Elongation Recovery Rate

Using a Tensilon tensile tester, a 2.5 cm wide sample gripped at agripping interval of 10 cm is repeatedly subjected to an elongation rateof 0% to 80% and a recovery rate of 80% to 0% at a tensile speed of 300mm/min three times, and the stress upon elongation and stress uponrecovery are measured for the horizontal direction, and an elongationrecovery curve is drawn. The stress of the elongation rate of 50% in thefirst elongation is read and set as the stress upon 50% elongation in ahorizontal direction. If it is not possible to secure a gripping lengthof 10 cm due to circumstances of the production shape, elongation isperformed at the possible gripping interval, such as 5 cm.

Regarding the elongation recovery rate, the third residual elongation(%) in the above-mentioned elongation stress measurement is read fromthe elongation recovery curve for the horizontal direction, and theelongation recovery rate (%) in the vertical direction and thehorizontal direction are calculated from the following formula:

Elongation recovery rate (%)={[80−(residual elongation)]÷80}×100

Note that the fabric used for measurement is sampled so as not topartially include a portion having a high elongation stress, such as ajoint portion or an embroidered portion.

(2) Distance Between Vertical Direction Center Line of Inner Fabric andUpper End of Inner Fabric and Part Corresponding to Greater Trochanter

In the side part (the stitching line on the side of the leg of thetorso) of a C70 torso manufactured by Kiiya Co., Ltd., a point 10 cmabove the crotch part at a horizontal distance is defined as the partcorresponding to the greater trochanter. In a state in which the bottomgarment is applied to the torso, the vertical direction distance betweenthe vertical direction center line of the inner fabric and the upper endof the inner fabric and the part corresponding to the greater trochanteris measured.

(3) Height of Vertical Direction Highest Point

In a state in which the bottom garment is turned over and placed on adesk, the vertical direction distance from the hem on the bottom garmentside part to the joint portion between the body fabric and the innerfabric is measured. The bottom garment side part indicates the part thatappears as a side line when the bottom garment is placed on the deskwith the front center and the back center of the bottom garmentoverlapped.

(4) Pressure

An air pack connected to an AMI-3037-10 pressure measuring devicemanufactured by AMI Techno Co., Ltd. is attached to the left and righthip top (top of buttock protrusion) parts and abdomen (3 cm below thenavel) of a C70-sized lower body torso manufactured by Kiiya Co., Ltd.,and the pressure (kPa) when the medium-sized bottom garment of thepresent embodiment is worn is measured repeatedly by performingdesorption three times, and the average thereof is calculated.

(5) Stride Length Difference, Walking Time Difference

Five subjects aged 20 to 60 years old were made to wear bottom garment,and the time T and stride length Q were measured during walking on an800 m course, and the difference between the time T1 and the stridelength Q1 when wearing only shorts was determined. Note that in eachcase, each subject wore the same untightened long pants, T-shirt, andathletic shoes as outerwear.

Stride length difference=Q−Q1 (cm)

Walking time difference=T1−T (sec)

(6) Knee Angle Θ

Five subjects aged 20 to 60 were made to wear the bottom garment, and inthe static standing position, as shown in FIG. 12, reflex markers wereattached at the iliac point, the center of the patella, and the lateralmalleolus point, and an action analysis system (VENUS 3D: manufacturedby Nobby-Tech. Ltd.) was used to measure the knee angle from the iliacpoint, the center of the patella, and the lateral malleolus point (Θshown in FIG. 12: representing the internal angle of the knee as seenfrom the front). The degree of effect was calculated by the followingformula.

Knee angle Θ[°]=(angle between iliac point, center of patella, andlateral malleolus when wearing bottom garment)−(angle between iliacpoint, center of patella, and lateral malleolus when not worn)

When the external rotation force is exerted and the knee is externallyrotated, Θ becomes a negative value, and when the internal rotationforce is exerted and the knee is internally rotated, Θ becomes apositive value. Furthermore, the larger the absolute value of Θ, thegreater the action of internal rotation or external rotation.

(7) Average Muscle Activity

The muscle activity E of the rectus femoris, gluteus maximus, and bicepsfemoris, when a subject in their twenties wears the bottom garment andruns on a treadmill at a speed of 12 km/hr is measured using amyoelectric evaluation device (Personal-EMG plus: manufactured by OisakaElectronic Equipment Ltd.), and the degree of change from the muscleactivity amount E1 when wearing only shorts is calculated from thefollowing equation.

Average muscle activity [% CTRL]=(E/E1)×100

Note that in order to distinguish between the stance phase and the swingphase, the state of treadmill running is photographed with a high-speedcamera, and the value of each muscle activity is obtained by integratingonly the stance phase in the running cycle. E is defined as the averagevalue of the amount of muscle activity in the three running cycles. Therectus femoris, gluteus maximus, and biceps femoris are muscle groupsinvolved in flexion and extension of the lower limbs, and when theaverage muscle activity is significant, energy consumption issignificant in running, and conversely, when the average muscle activityis small, energy consumption is small in running, and it is deemed thatefficient running is possible.

(8) Wearing Feeling

Five subjects evaluated the tightening feeling, ease of movement, andfatigue of the buttocks according to the following criteria, and theaverage thereof is calculated.

<Tightening Feeling>

5: Very comfortable

4: Somewhat comfortable

3: Unclear

2: Somewhat uncomfortable

1: Very uncomfortable

<Ease of Movement>

5: Very easy to move

4: Easy to move

3: Unclear

2: Slightly difficult to move

1: Very difficult to move

<Fatigue>

5: Very little fatigue

4: Some fatigue

3: Unclear

2: Somewhat significant fatigue

1: Significant fatigue

Example 1

Regarding the fabric for the body fabric and inner fabric, using asingle tricot machine, a full set of 56 dtex 36 polyester filament wasthreaded onto the front loom and 56 dtex polyurethane fibers werethreaded on the rear loom, the front structure was organized in 1-0/2-3and the back structure was organized in 1-2/1-0, and finishing wasperformed by a conventional method.

The warp direction of the fabric as a knitted fabric was arranged in thehorizontal direction of the product, and a body fabric and an innerfabric were produced in a JASPO (Japan Sporting Goods IndustryAssociation) unisex medium size unisex with the pattern of FIG. 3.Furthermore, in the inner fabric, the warp direction of the fabric as aknitted fabric was arranged in the vertical direction of the product.Sewing was performed using a seamer sewing machine. The upper side andside end parts of the inner fabric were sewn with the body fabric usingthe seaming sewing machine to produce a bottom garment for athletes.

Example 2

A bottom garment for the elderly was produced in the same manner asExample 1, except that regarding the fabric for the body fabric, using asingle tricot machine, a full set of 44 dtex 24 polyester filament wasthreaded onto the front loom and 33 dtex polyurethane fibers werethreaded on the rear loom, the front structure was organized in 1-0/2-3and the back structure was organized in 1-2/1-0, and regarding thefabric for the inner fabric, using a single tricot machine, a full setof 44 dtex 24 polyester filament was threaded onto the front loom and 33dtex polyurethane fibers were threaded on the rear loom, the frontstructure was organized in 1-0/2-3 and the back structure was organizedin 1-2/1-0.

Example 3

A bottom garment was produced in the same manner as Example 1, exceptthat the height B of the highest part of the joining point between thebody fabric and the inner fabric of the side part was reduced.

Example 4

A bottom garment was produced in the same manner as Example 1, exceptthat the height B of the highest part of the joining point between thebody fabric and the inner fabric of the side part was reduced more thanExample 3.

Example 5

A bottom garment was produced in the same manner as Example 1, exceptthat the height B of the highest part of the joining point between thebody fabric and the inner fabric of the side part was increased.

Example 6

A bottom garment was produced in the same manner as Example 1 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 4.

Example 7

A bottom garment was produced in the same manner as Example 1 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 5.

Example 8

A bottom garment was produced in the same manner as Example 1 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 6.

Example 9

A bottom garment was produced in the same manner as Example 1 exceptthat the body fabric and inner fabric were produced with a long length.

Example 10

A bottom garment was produced in the same manner as Example 1 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 7.

Example 11

A bottom garment was produced in the same manner as Example 2 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 7.

Example 12

A bottom garment was produced in the same manner as Example 10 exceptthat the height B of the highest part of the joining point between thebody fabric and the inner fabric of the side part was reduced.

Example 13

A bottom garment was produced in the same manner as Example 10 exceptthat the height B of the highest part of the joining point between thebody fabric and the inner fabric of the side part was reduced more thanExample 12.

Example 14

A bottom garment was produced in the same manner as Example 10 exceptthat the height B of the highest part of the joining point between thebody fabric and the inner fabric of the side part was increased.

Example 15

A bottom garment was produced in the same manner as Example 1 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 8.

Example 16

A bottom garment was produced in the same manner as Example 1 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 9.

Example 17

A bottom garment was produced in the same manner as Example 1 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 10.

Example 18

A bottom garment was produced in the same manner as Example 1 exceptthat the body fabric and inner fabric were produced with the pattern ofFIG. 11.

Example 19

A bottom garment was produced in the same manner as Example 10 exceptthat the body fabric and inner fabric were produced with a long length.

Comparative Example 1

A bottom garment was produced in the same manner as Example 1 exceptthat the height B of the highest part of the joining point between thebody fabric and the inner fabric of the side part was high.

Comparative Example 2

A bottom garment was produced in the same manner as Example 1 exceptthat the inner fabric was entirely joined to the body fabric.

Comparative Example 3

A bottom garment was produced as described below with reference toExample 1 of WO 2019/124525.

Regarding the fabric for the body fabric, a full set of nylon 44 dtex 34filament nylon was threaded onto the front loom, 155 dtex spandex fiberswere threaded onto the middle loom, and 33 dtex spandex fibers werethreaded on the rear loom, the front structure was organized in1-0/2-1/2-3/1-2, the middle structure was organized in 0-0/1-1, and theback structure was organized in 0-0/3-3/2-2/3-3, a gray fabric wasproduced such that the part corresponding to the hem had a hemstructure, and finishing was performed by a conventional method.

Regarding the fabric for the inner fabric, using a single tricotmachine, a full set of 33 dtex 34 nylon filament was threaded onto thefront loom and 15 dtex polyurethane fibers were threaded on the rearloom, the front structure was organized in 1-0/2-3 and the backstructure was organized in 2-0/1-3, and finishing was performed by aconventional method.

The warp direction of the fabric as a knitted fabric was arranged in thehorizontal direction of the product, the inner fabric was overlapped andjoined from the vicinity of the center of the buttocks in the verticaldirection to the vicinity of the base of the legs in the pattern of FIG.6 to produce a women's medium-sized (height 155 to 165 cm) bottomgarment. An adhesive manufactured by BEMIS was used for the joining, andthe joining was carried out at a pressure of 3 BAR and a temperature of160° C. for 30 seconds using a bonding machine. The joint width was 1cm, the lower end of the inner fabric was free-cut and sewn, and joiningwith the body fabric was not performed except for the crotch part.

Comparative Example 4

A bottom garment was produced as described below with reference toExample 9 of WO 2019/124525.

A women's medium-sized bottom garment was produced in the same manner asExample 3 except that the body fabric and inner fabric were producedwith the pattern of FIG. 10.

The results of the wearing evaluations of the bottom garments of theabove Examples and Comparative Examples are shown in Tables 3 to 5 belowtogether with the characteristics of the fabrics and garments.

TABLE 3 Ex 1 Ex 2 Ex 3 Ex 4 Pattern FIG. 1 FIG. 1 FIG. 1 FIG. 1 Bodyfabric Basis weight [g/m2] 243 174 243 243 Thickness [mm] 0.61 0.43 0.610.61 Stress upon 50% elongation in horizontal direction [N] 2.2 1.3 2.22.2 Elongation recovery rate [%] 84 95 84 84 Inner fabric Basis weight[g/m2] 243 166 243 243 Thickness [mm] 0.61 0.53 0.61 0.61 Stress upon50% elongation in horizontal direction [N] 2.4 0.47 2.4 2.4 Elongationrecovery rate [%] 89 85 89 89 Ratio of inner fabric horizontalstress/body fabric horizontal stress [—] 1.09 0.36 1.09 1.09 Position of70% or more of joint portion of side end part with respect to horizontalline passing Above Above Above Above through point 5 cm above crotchpart Position of vertical direction center line of inner fabric withrespect to part corresponding to greater Below Below Below Belowtrochanter Position of upper end of inner fabric with respect to partcorresponding to greater trochanter Below Below Below Below Shortestdistance between upper end of inner fabric and part corresponding togreater trochanter 0.5 0.5 7.5 11.0 Ratio of joining between side endpart of inner fabric and thigh part on back surface [%] 100 100 100 100Ratio of joining between side end part of inner fabric and thigh part onfront surface [%] 0 0 0 0 Height of vertical direction highest point Aof side end part of inner fabric on front [cm] 31.0 40.0 31.0 31.0surface Height of vertical direction highest point B of inner fabric inside part [cm] 19.5 35.0 12.5 9.0 Height of vertical direction highestpoint C of side end part of inner fabric on back [cm] 12.0 14.0 12.012.0 surface Pressure Hip top [hPa] 15 9 15 15 Stomach [hPa] 11 6 11 11Stride length difference [cm] 4.1 3.8 2.8 2.5 Walking time difference[sec] 57 53 47 41 Knee angle Θ [deg.] −7.6 −6.8 −6.1 −5.6 Average MuscleActivity Rectus femoris [% CTRL] 94 95 96 98 Gluteus maximus [% CTRL] 9396 97 97 Biceps femoris [% CTRL] 95 94 96 97 Wearing Feeling Tighteningfeeling [—] 4.4 4.6 4.6 4.6 Ease of movement [—] 4.6 4.8 4.8 4.8 Fatigue[—] 4.8 4.6 4.6 4.6 Ex 5 Ex 6 Ex 7 Ex 8 Pattern FIG. 1 FIG. 2 FIG. 3FIG. 4 Body fabric Basis weight [g/m2] 243 243 243 243 Thickness [mm]0.61 0.61 0.61 0.61 Stress upon 50% elongation in horizontal direction[N] 2.2 2.2 2.2 2.2 Elongation recovery rate [%] 84 84 84 84 Innerfabric Basis weight [g/m2] 243 243 243 243 Thickness [mm] 0.61 0.61 0.610.61 Stress upon 50% elongation in horizontal direction [N] 2.4 2.4 2.42.4 Elongation recovery rate [%] 89 89 89 89 Ratio of inner fabrichorizontal stress/body fabric horizontal stress [—] 1.09 1.09 1.09 1.09Position of 70% or more of joint portion of side end part with respectto horizontal line passing Above Above Above Above through point 5 cmabove crotch part Position of vertical direction center line of innerfabric with respect to part corresponding to greater Below Below BelowBelow trochanter Position of upper end of inner fabric with respect topart corresponding to greater trochanter Above Above Above AboveShortest distance between upper end of inner fabric and partcorresponding to greater trochanter 1.3 9.5 0.1 0.3 Ratio of joiningbetween side end part of inner fabric and thigh part on back surface [%]100 100 100 50 Ratio of joining between side end part of inner fabricand thigh part on front surface [%] 0 0 0 0 Height of vertical directionhighest point A of side end part of inner fabric on front [cm] 33.0 31.022.0 30.5 surface Height of vertical direction highest point B of innerfabric in side part [cm] 21.3 31.0 20.0 20.2 Height of verticaldirection highest point C of side end part of inner fabric on back [cm]12.0 12.0 15.0 22.0 surface Pressure Hip top [hPa] 15 15 15 15 Stomach[hPa] 11 11 11 11 Stride length difference [cm] 3.5 3.2 3.4 3.2 Walkingtime difference [sec] 49 44 45 44 Knee angle Θ [deg.] −6.2 −6.3 −6.5−6.3 Average Muscle Activity Rectus femoris [% CTRL] 96 97 95 98 Gluteusmaximus [% CTRL] 97 96 97 97 Biceps femoris [% CTRL] 97 98 98 96 WearingFeeling Tightening feeling [—] 3.8 3.7 4.4 4.5 Ease of movement [—] 3.93.8 4.6 4.9 Fatigue [—] 3.7 3.7 4.6 4.8

TABLE 4 Ex 9 Ex 10 Ex 11 Ex 12 Pattern FIG. 1 FIG. 5 FIG. 5 FIG. 5 Bodyfabric Basis weight [g/m2] 243 243 174 243 Thickness [mm] 0.61 0.61 0.430.61 Stress upon 50% elongation in horizontal direction [N] 2.2 2.2 1.32.2 Elongation recovery rate [%] 84 84 95 84 Inner fabric Basis weight[g/m2] 243 243 166 243 Thickness [mm] 0.61 0.61 0.53 0.61 Stress upon50% elongation in horizontal direction [N] 2.4 2.4 0.47 2.4 Elongationrecovery rate [%] 89 89 85 89 Ratio of inner fabric horizontalstress/body fabric horizontal stress [—] 1.09 1.09 0.36 1.09 Position of70% or more of joint portion of side end part with respect to horizontalline passing Above Below Below Below through point 5 cm above crotchpart Position of vertical direction center line of inner fabric withrespect to part corresponding to greater Below Below Below Belowtrochanter Position of upper end of inner fabric with respect to partcorresponding to greater trochanter Below Below Below Below Shortestdistance between upper end of inner fabric and part corresponding togreater trochanter 0.5 2.0 0.9 7.1 Ratio of joining between side endpart of inner fabric and thigh part on back surface [%] 100 100 85 100Ratio of joining between side end part of inner fabric and thigh part onfront surface [%] 0 100 80 100 Height of vertical direction highestpoint A of side end part of inner fabric on front [cm] 80.0 12.0 16.010.0 surface Height of vertical direction highest point B of innerfabric in side part [cm] 68.5 18.0 27.0 12.9 Height of verticaldirection highest point C of side end part of inner fabric on back [cm]61.0 12.0 19.0 10.0 surface Pressure Hip top [hPa] 15 15 9 15 Stomach[hPa] 11 11 6 11 Stride length difference [cm] 2.5 4.3 3.7 2.8 Walkingtime difference [sec] 41 60 51 39 Knee angle Θ [deg.] −5.5 7.3 6.7 5.6Average Muscle Activity Rectus femoris [% CTRL] 97 92 93 96 Gluteusmaximus [% CTRL] 96 94 95 97 Biceps femoris [% CTRL] 97 91 90 95 WearingFeeling Tightening feeling [—] 4.6 4.1 4.4 4.4 Ease of movement [—] 3.94.6 4.6 4.6 Fatigue [—] 4.0 4.9 4.6 4.6 Ex 13 Ex 14 Ex 15 Ex 16 PatternFIG. 5 FIG. 5 FIG. 6 FIG. 7 Body fabric Basis weight [g/m2] 243 243 243243 Thickness [mm] 0.61 0.61 0.61 0.61 Stress upon 50% elongation inhorizontal direction [N] 2.2 2.2 2.2 2.2 Elongation recovery rate [%] 8484 84 84 Inner fabric Basis weight [g/m2] 243 243 243 243 Thickness [mm]0.61 0.61 0.61 0.61 Stress upon 50% elongation in horizontal direction[N] 2.4 2.4 2.4 2.4 Elongation recovery rate [%] 89 89 89 89 Ratio ofinner fabric horizontal stress/body fabric horizontal stress [—] 1.091.09 1.09 1.09 Position of 70% or more of joint portion of side end partwith respect to horizontal line passing Below Below Below Below throughpoint 5 cm above crotch part Position of vertical direction center lineof inner fabric with respect to part corresponding to greater BelowBelow Below Below trochanter Position of upper end of inner fabric withrespect to part corresponding to greater trochanter Below Above BelowBelow Shortest distance between upper end of inner fabric and partcorresponding to greater trochanter 12.5 1.2 6.0 6.0 Ratio of joiningbetween side end part of inner fabric and thigh part on back surface [%]100 100 100 100 Ratio of joining between side end part of inner fabricand thigh part on front surface [%] 100 100 100 100 Height of verticaldirection highest point A of side end part of inner fabric on front [cm]10.0 12.0 14.0 16.0 surface Height of vertical direction highest point Bof inner fabric in side part [cm] 7.5 21.2 14.0 14.0 Height of verticaldirection highest point C of side end part of inner fabric on back [cm]10.0 12.0 14.0 16.0 surface Pressure Hip top [hPa] 15 15 15 15 Stomach[hPa] 11 11 11 11 Stride length difference [cm] 2.5 3.3 3.1 2.6 Walkingtime difference [sec] 38 46 43 41 Knee angle Θ [deg.] 5.4 6.5 6.1 5.6Average Muscle Activity Rectus femoris [% CTRL] 99 95 96 97 Gluteusmaximus [% CTRL] 98 94 95 98 Biceps femoris [% CTRL] 97 96 95 98 WearingFeeling Tightening feeling [—] 4.4 3.9 4.5 4.3 Ease of movement [—] 4.63.8 4.6 4.5 Fatigue [—] 4.6 3.5 4.6 4.6

TABLE 5 Ex 17 Ex 18 Ex 19 Comp Ex 1 Pattern FIG. 8 FIG. 9 FIG. 5 FIG. 1Body fabric Basis weight [g/m2] 243 243 243 243 Thickness [mm] 0.61 0.610.61 0.61 Stress upon 50% elongation in horizontal direction [N] 2.2 2.22.2 2.2 Elongation recovery rate [%] 84 84 84 84 Inner fabric Basisweight [g/m2] 243 243 243 243 Thickness [mm] 0.61 0.61 0.61 0.61 Stressupon 50% elongation in horizontal direction [N] 2.4 2.4 2.4 2.4Elongation recovery rate [%] 89 89 89 89 Ratio of inner fabrichorizontal stress/body fabric horizontal stress [—] 1.09 1.09 1.09 1.09Position of 70% or more of joint portion of side end part with respectto horizontal line passing Below Below Below Above through point 5 cmabove crotch part Position of vertical direction center line of innerfabric with respect to part corresponding to greater Below Below BelowAbove trochanter Position of upper end of inner fabric with respect topart corresponding to greater trochanter Above Below Below AboveShortest distance between upper end of inner fabric and partcorresponding to greater trochanter 7.0 4.0 2.0 9.5 Ratio of joiningbetween side end part of inner fabric and thigh part on back surface [%]100 50 100 100 Ratio of joining between side end part of inner fabricand thigh part on front surface [%] 30 100 100 0 Height of verticaldirection highest point A of side end part of inner fabric on front [cm]26.0 17.0 60.0 31.0 surface Height of vertical direction highest point Bof inner fabric in side part [cm] 27.0 24.0 66.0 29.5 Height of verticaldirection highest point C of side end part of inner fabric on back [cm]14.0 22.0 60.0 12.0 surface Pressure Hip top [hPa] 15 15 15 15 Stomach[hPa] 11 11 11 11 Stride length difference [cm] 2.9 3.5 2.4 1.8 Walkingtime difference [sec] 40 49 39 31 Knee angle Θ [deg.] 5.8 6.3 5.5 −4.7Average Muscle Activity Rectus femoris [% CTRL] 95 94 97 105 Gluteusmaximus [% CTRL] 93 94 96 109 Biceps femoris [% CTRL] 97 95 97 104Wearing Feeling Tightening feeling [—] 3.8 4.3 4.4 3.1 Ease of movement[—] 3.7 4.9 4.1 3.3 Fatigue [—] 3.9 4.9 3.8 3.2 Comp Ex 2 Comp Ex 3 CompEx 4 Pattern FIG. 1 FIG. 4 FIG. 8 Body fabric Basis weight [g/m2] 243172 172 Thickness [mm] 0.61 0.45 0.45 Stress upon 50% elongation inhorizontal direction [N] 2.2 1.5 1.5 Elongation recovery rate [%] 84 9696 Inner fabric Basis weight [g/m2] 243 135 135 Thickness [mm] 0.61 0.410.41 Stress upon 50% elongation in horizontal direction [N] 2.4 0.560.56 Elongation recovery rate [%] 89 92 92 Ratio of inner fabrichorizontal stress/body fabric horizontal stress [—] 1.09 0.37 0.37Position of 70% or more of joint portion of side end part with respectto horizontal line passing Above Above Below through point 5 cm abovecrotch part Position of vertical direction center line of inner fabricwith respect to part corresponding to greater Below Above Abovetrochanter Position of upper end of inner fabric with respect to partcorresponding to greater trochanter Below Above Above Shortest distancebetween upper end of inner fabric and part corresponding to greatertrochanter 0.5 11 6.2 Ratio of joining between side end part of innerfabric and thigh part on back surface [%] 100 40 100 Ratio of joiningbetween side end part of inner fabric and thigh part on front surface[%] 0 0 30 Height of vertical direction highest point A of side end partof inner fabric on front [cm] 31.0 38.0 16.0 surface Height of verticaldirection highest point B of inner fabric in side part [cm] 19.5 33.023.0 Height of vertical direction highest point C of side end part ofinner fabric on back [cm] 12.0 22.0 20.0 surface Pressure Hip top [hPa]15 14 12 Stomach [hPa] 11 10 9 Stride length difference [cm] 0.6 1.9 2.1Walking time difference [sec] 10 33 36 Knee angle Θ [deg.] 0.1 −5.1 4.8Average Muscle Activity Rectus femoris [% CTRL] 120 102 103 Gluteusmaximus [% CTRL] 117 105 104 Biceps femoris [% CTRL] 118 104 102 WearingFeeling Tightening feeling [—] 2.3 3.6 3.5 Ease of movement [—] 2.4 3.73.4 Fatigue [—] 2.5 3.5 3.6

From Tables 3 to 5, since the vertical direction center line of theinner fabric was located below a part corresponding to the greatertrochanter in the vertical direction in the side part of the bottomgarment, the effect of internal or external rotation on the knee issuitably obtained. Furthermore, excellent tightening feeling, ease ofmovement, and feeling of correction could be simultaneously achieved.

Thus, the bottom garment of the present invention does not inhibit theease of movement during action and has an excellent rotation effect withrespect to the knee.

INDUSTRIAL APPLICABILITY

In the bottom garment of the first present invention, since the innerfabric overlaps the inside of the body fabric and the ratio of thevertical direction and horizontal direction stresses upon 80% elongationof the inner fabric is in a predetermined range, since the inner fabricfollows the extension of the skin during action and does not inhibit theaction, movement is facilitated, and the external rotation force or theinternal rotation force can be efficiently applied to the body, wherebythe rotation effect with respect to the knee is large. Thus, acorrective effect on bow-leggedness and knock-knees can be expected, andan excellent walking assist effect can be achieved by wearing the bottomgarment of the present invention. Therefore, the bottom garment of thepresent invention can be suitably used for sports bottoms and the like.

In the bottom garment of the second present invention, since thevertical direction center line of the inner fabric is located below apart corresponding to the greater trochanter in the vertical directionin the side part of the bottom garment, since the inner fabric followsthe extension of the skin during action and does not inhibit the action,movement is facilitated, and the external rotation force or the internalrotation force can be efficiently applied to the body, whereby therotation effect with respect to the knee is large. Thus, a correctiveeffect on bow-leggedness and knock-knees can be expected, and anexcellent walking assist effect can be achieved by wearing the bottomgarment of the present invention. Therefore, the bottom garment of thepresent invention can be suitably used for sports bottoms and the like.

1. A bottom garment, which comprises an elastic yarn, which is composedof a body fabric and an inner fabric, and in which there is present adouble structure in which the inner fabric overlaps the inside of thebody fabric and at least a part of the inner fabric is not joined to thebody fabric, wherein when a stress upon 80% elongation in a verticaldirection of a product of the inner fabric is defined as A and a stressupon 80% elongation in a horizontal direction of a product of the innerfabric is defined as B, 0.1≤A/B<1.0.
 2. The bottom garment according toclaim 1, wherein 0.1≤A/B<0.5.
 3. The bottom garment according to claim1, wherein when a stress upon 50% elongation in a horizontal directionof a product of the body fabric is defined as C and a stress upon 50%elongation in a horizontal direction of the inner fabric is defined asD, 1.6<D/C≤10.
 4. The bottom garment according to claim 3, wherein1.6<D/C≤6.0.
 5. The bottom garment according to claim 4, wherein1.6<D/C≤4.0.
 6. The bottom garment according to claim 1, which is asport garment.
 7. The bottom garment according to claim 2, wherein whena stress upon 50% elongation in a horizontal direction of a product ofthe body fabric is defined as C and a stress upon 50% elongation in ahorizontal direction of the inner fabric is defined as D, 1.6<D/C≤10. 8.The bottom garment according to claim 2, which is a sport garment. 9.The bottom garment according to claim 3, which is a sport garment. 10.The bottom garment according to claim 4, which is a sport garment. 11.The bottom garment according to claim 5, which is a sport garment.